Notice dutilisation / Schémas - QUAD - Préamplificateur 44 - Photocopie Notice demploi du préamplificateur QUAD 44 des années 80.Schémas électroniques. Document en français.Format : 26 pages photocopiées au format 21 x 29,7 cm Emballage soigné. Expédition en courrier postal avec suivi. Minterroger pour la possibilité dun envoi groupé avec dautres brochures et documents, afin de réduire les frais dexpédition. Instructions for use / Diagrams - QUAD - Preamplifier 44 - Photocopy Instructions for use of the QUAD 44 preamplifier from the 80s. Electronic diagrams. Documentation in French. Size: 26 photocopied pages in the format 21 x 29.7 cm Careful packaging. Shipping by post with tracking. Ask me for the possibility of a joint shipment with other brochures and documents, in order to reduce shipping costs. Labo D1

4 authentic 1970 production philips amperex 6dj8 ecc88 audio tubes, match balanced quadsuperb preamp upgrade for tube mics vocals instruments stereos and more hifidelity appssilky smooth umbrella getter resolution w/ rugged versatile build for fast paced music detailaudio grade quad (singles/pairs available) w/ special proprietary cali acoustics refurb processfull mutual gm test for all parameters +90% mutual gm strong speccurated from private collector, ships fast well packed worldwide ~authentic vintage audiophile collectibles by cali acoustics~ (we dont relabel tubes, oe fragile only) current inventory includes:6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc12ax7 12au7 12at7 12ad7 (new) / ecc83 ecc82 ecc81 6201 (new)6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85 ~ 6ca7 el34 audiophile verified compatible apps include:preamps stereos vocals instruments tube mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudiobhk mono blocks +many more!

4 reference grade grail ranked e88cc philips heerlen audiophile tubes, sought after tonehifidelity transparent presence deep bass air musical natural tonality delta code authentic!strong specs 90/89 ~ 102/91 ~ 101/93 ~ 100/99 % mutual gm (+100%=nos) audio grade phono ready quad w/ proprietary special cali refurb processsuperb upgrade for mics amps vocals stereos / ships worldwide well packed w/ tube boxes ~authentic vintage audio collectibles by cali acoustics~ current inventory includes:6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc12ax7 12au7 12at7 12ad7 (new) / ecc83 ecc82 ecc81 6201 (new)6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85 ~ 6ca7 el34 verified apps include:preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudiobhk + many more!

QUAD 33 Pre Amplifier Spare parts 3 x 28mm Filter Pots Bass Treble Slope These are 28mm All Short Throw All 3 28mm Potentiometers included, all original, unmolested fully working, treated with Servisol, no noise.NOTE. The filter pot can only be used for this application, it will not work as a volume pot! IMPORTANT NOTEThis might get a little confusing but QUAD used different potentiometers over the years and you will need to match them up if you want your wheel rotation to register properly on the front plate.There is 2 can diameters 24mm and 28mm (both approx sizes)Both type cans can have long or shorter rotationSee the listing photo to match your filter wheels and choose the type you need.Message me after purchase to confirm. It’s easier to find your type by looking at the “slope” wheel, it’s graduations have a greater variation, the bass and treble wheels are not so easy to differentiate, if in doubt message me. For this reason I only sell them as a group of 3. Filter wheels not included in sale. From my personal collection of used tested and working parts, I have too many and not enough time to use them before my eyes give up close work! All parts have been taken from complete working units. Hoping these bits and bobs will help you get your 33 up and running again.Be aware though that there will be security markings on some parts due to a few unpleasant experiences in the past. There may be some slight damage to the wiring from the desoldering operation but nothing that cannot be easily repaired as you fit them. Photos form part of the description and if you require any more or information of any kind it is only a message away! Always happy to discuss vintage QUAD problems, I have experienced most of the common faults multiple times! Happy to combine postage on multiple sales. Will use the appropriate service dependant on total price and weight.All parcels will be insured to the value within. Thank you for looking.

QUAD 33 Pre Amplifier Spare parts 3 x 24mm Filter Pots Bass Treble Slope These are 24mm Long Throw All 3 24mm Potentiometers included, all original, unmolested fully working, treated with Servisol, no noise.NOTE. The filter pot can only be used for this application, it will not work as a volume pot! IMPORTANT NOTEThis might get a little confusing but QUAD used different potentiometers over the years and you will need to match them up if you want your wheel rotation to register properly on the front plate.There is 2 can diameters 24mm and 28mm (both approx sizes)Both type cans can have long or shorter rotationSee the listing photo to match your filter wheels and choose the type you need.Message me after purchase to confirm. It’s easier to find your type by looking at the “slope” wheel, it’s graduations have a greater variation, the bass and treble wheels are not so easy to differentiate, if in doubt message me. For this reason I only sell them as a group of 3. Filter wheels not included in sale. From my personal collection of used tested and working parts, I have too many and not enough time to use them before my eyes give up close work! All parts have been taken from complete working units. Hoping these bits and bobs will help you get your 33 up and running again.Be aware though that there will be security markings on some parts due to a few unpleasant experiences in the past. There may be some slight damage to the wiring from the desoldering operation but nothing that cannot be easily repaired as you fit them. Photos form part of the description and if you require any more or information of any kind it is only a message away! Always happy to discuss vintage QUAD problems, I have experienced most of the common faults multiple times! Happy to combine postage on multiple sales. Will use the appropriate service dependant on total price and weight.All parcels will be insured to the value within. Thank you for looking.

QUAD 33 Pre Amplifier Spare parts 3 x 28mm Filter Pots Bass Treble Slope These are 28mm Long Throw All 3 28mm Potentiometers included, all original, unmolested fully working, treated with Servisol, no noise.NOTE. The filter pot can only be used for this application, it will not work as a volume pot! IMPORTANT NOTEThis might get a little confusing but QUAD used different potentiometers over the years and you will need to match them up if you want your wheel rotation to register properly on the front plate.There is 2 can diameters 24mm and 28mm (both approx sizes)Both type cans can have long or shorter rotationSee the listing photo to match your filter wheels and choose the type you need.Message me after purchase to confirm. It’s easier to find your type by looking at the “slope” wheel, it’s graduations have a greater variation, the bass and treble wheels are not so easy to differentiate, if in doubt message me. For this reason I only sell them as a group of 3. Filter wheels not included in sale. From my personal collection of used tested and working parts, I have too many and not enough time to use them before my eyes give up close work! All parts have been taken from complete working units. Hoping these bits and bobs will help you get your 33 up and running again.Be aware though that there will be security markings on some parts due to a few unpleasant experiences in the past. There may be some slight damage to the wiring from the desoldering operation but nothing that cannot be easily repaired as you fit them. Photos form part of the description and if you require any more or information of any kind it is only a message away! Always happy to discuss vintage QUAD problems, I have experienced most of the common faults multiple times! Happy to combine postage on multiple sales. Will use the appropriate service dependant on total price and weight.All parcels will be insured to the value within. Thank you for looking.

QUAD 33 Pre Amplifier Spare parts 3 x 24mm Filter Pots Bass Treble Slope These are 24mm Short Throw All 3 24mm Potentiometers included, all original, unmolested fully working, treated with Servisol, no noise.NOTE. The filter pot can only be used for this application, it will not work as a volume pot! IMPORTANT NOTEThis might get a little confusing but QUAD used different potentiometers over the years and you will need to match them up if you want your wheel rotation to register properly on the front plate.There is 2 can diameters 24mm and 28mm (both approx sizes)Both type cans can have long or shorter rotationSee the listing photo to match your filter wheels and choose the type you need.Message me after purchase to confirm. It’s easier to find your type by looking at the “slope” wheel, it’s graduations have a greater variation, the bass and treble wheels are not so easy to differentiate, if in doubt message me. For this reason I only sell them as a group of 3. Filter wheels not included in sale. From my personal collection of used tested and working parts, I have too many and not enough time to use them before my eyes give up close work! All parts have been taken from complete working units. Hoping these bits and bobs will help you get your 33 up and running again.Be aware though that there will be security markings on some parts due to a few unpleasant experiences in the past. There may be some slight damage to the wiring from the desoldering operation but nothing that cannot be easily repaired as you fit them. Photos form part of the description and if you require any more or information of any kind it is only a message away! Always happy to discuss vintage QUAD problems, I have experienced most of the common faults multiple times! Happy to combine postage on multiple sales. Will use the appropriate service dependant on total price and weight.All parcels will be insured to the value within. Thank you for looking.

4 authentic 1970 production philips amperex 6dj8 ecc88 audio tubes, matched balanced quadsuperb preamp upgrade for tube mics vocals instruments stereos and more hifidelity appssilky smooth umbrella getter resolution w/ rugged versatile build for fast paced music detailaudio grade quad (singles/pairs available) w/ special proprietary cali acoustics refurb processfull mutual gm test for all parameters 94/93 ~ 100/100 ~ 101/99 ~104/106 % gm strong speccurated from private collector, ships fast well packed worldwide ~authentic vintage audiophile collectibles by cali acoustics~ (we dont relabel tubes, oe fragile only) current inventory includes:6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc12ax7 12au7 12at7 12ad7 (new) / ecc83 ecc82 ecc81 6201 (new)6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85 ~ 6ca7 el34 audiophile verified compatible apps include:preamps stereos vocals instruments tube mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudiobhk mono blocks +many more!

4 authentic 1970 production philips amperex 6dj8 ecc88 audio tubes, tight match balance quadsuperb preamp upgrade for tube mics vocals instruments stereos and more hifidelity appssilky smooth umbrella getter resolution w/ rugged versatile build for fast paced music detailaudio grade quad (singles/pairs available) w/ special proprietary cali acoustics refurb processfull mutual gm test for all parameters 95/104 ~ 104/99 ~ 98/90 ~ 88/87 % gm strong speccurated from private collector, ships fast well packed worldwide ~authentic vintage audiophile collectibles by cali acoustics~ (we dont relabel tubes, oe fragile only) current inventory includes:6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc12ax7 12au7 12at7 12ad7 (new) / ecc83 ecc82 ecc81 6201 (new)6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85 ~ 6ca7 el34 audiophile verified compatible apps include:preamps stereos vocals instruments tube mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudiobhk mono blocks +many more!

4 reference grade grail 6922 amperex usa audiophile tubes, sought after early expansive tonehifidelity natural presence lush deep warm bass stage musical tonality clear transparency!94/93 ~ 99/98 ~ 110/110 ~ 114/110 % mutual gm (+100%=nos)special screened rare hp edition highest qc! superb upgrade for mics amps vocals stereos+audio grade phono ready quad w/ proprietary cali refurb processny code authentic w/ real labels visible / ships worldwide well packed w/ tube boxes ~authentic vintage audio collectibles by cali acoustics~ current inventory includes:6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc12ax7 12au7 12at7 12ad7 (new) / ecc83 ecc82 ecc81 6201 (new)6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85 ~ 6ca7 el34 verified apps include:preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudiobhk + many more!

A fine old quad 33 Preamplifier with built in moving magnet phono stage. This is working producing a good clean sound through all inputs. All the front controls work quietly and with smooth action. No loud pops when you switch on as is common on this unit. The front illuminated sign comes on sometime and sometime it does not. The back is fine with no cracks to the rear panel. All the slide in boards are present. Comes with a mains lead and an DIN interconnect cable to attach to the partner Quad 303 power amplifier. This is not the standard Quad cable but a Monster cable upgrade but the DIN plugs on this cable are not as secure as the factory originals so make sure you push them in fully. The tape replay DIN socket has been pressed in too far but is still attached to the rear panel. In average cosmetic condition with rub marks on the volume knob and light rubs the case but no heavy scratches or dent to the case. We have the matching Quad 303 power amplifier for sale Will be well packed for delivery.

A fine old quad 33 Preamplifier with built in moving magnet phono stage. This is working producing a good clean sound through all inputs. All the front controls work quietly and with smooth action. No loud pops when you switch on as is common on this unit. The front illuminated sign comes on sometime and sometime it does not. The back is fine with no cracks to the rear panel. All the slide in boards are present. Comes with a mains lead and an DIN interconnect cable to attach to the partner Quad 303 power amplifier. This is not the standard Quad cable but a Monster cable upgrade but the DIN plugs on this cable are not as secure as the factory originals so make sure you push them in fully. The tape replay DIN socket has been pressed in too far but is still attached to the rear panel. In average cosmetic condition with rub marks on the volume knob and light rubs the case but no heavy scratches or dent to the case. We have the matching Quad 303 power amplifier for sale Will be well packed for delivery.

QUAD 33 Pre Amplifier Spare parts 3 x 28mm Filter Pots Bass Treble Slope These are 28mm All Short Throw All 3 28mm Potentiometers included, all original, unmolested fully working, treated with Servisol, no noise.NOTE. The filter pot can only be used for this application, it will not work as a volume pot! IMPORTANT NOTEThis might get a little confusing but QUAD used different potentiometers over the years and you will need to match them up if you want your wheel rotation to register properly on the front plate.There is 2 can diameters 24mm and 28mm (both approx sizes)Both type cans can have long or shorter rotationSee the listing photo to match your filter wheels and choose the type you need.Message me after purchase to confirm. It’s easier to find your type by looking at the “slope” wheel, it’s graduations have a greater variation, the bass and treble wheels are not so easy to differentiate, if in doubt message me. For this reason I only sell them as a group of 3. Filter wheels not included in sale. From my personal collection of used tested and working parts, I have too many and not enough time to use them before my eyes give up close work! All parts have been taken from complete working units. Hoping these bits and bobs will help you get your 33 up and running again.Be aware though that there will be security markings on some parts due to a few unpleasant experiences in the past. There may be some slight damage to the wiring from the desoldering operation but nothing that cannot be easily repaired as you fit them. Photos form part of the description and if you require any more or information of any kind it is only a message away! Always happy to discuss vintage QUAD problems, I have experienced most of the common faults multiple times! Happy to combine postage on multiple sales. Will use the appropriate service dependant on total price and weight.All parcels will be insured to the value within. Thank you for looking.

QUAD 33 Pre Amplifier Spare parts 3 x 24mm Filter Pots Bass Treble Slope These are 24mm Long Throw All 3 24mm Potentiometers included, all original, unmolested fully working, treated with Servisol, no noise.NOTE. The filter pot can only be used for this application, it will not work as a volume pot! IMPORTANT NOTEThis might get a little confusing but QUAD used different potentiometers over the years and you will need to match them up if you want your wheel rotation to register properly on the front plate.There is 2 can diameters 24mm and 28mm (both approx sizes)Both type cans can have long or shorter rotationSee the listing photo to match your filter wheels and choose the type you need.Message me after purchase to confirm. It’s easier to find your type by looking at the “slope” wheel, it’s graduations have a greater variation, the bass and treble wheels are not so easy to differentiate, if in doubt message me. For this reason I only sell them as a group of 3. Filter wheels not included in sale. From my personal collection of used tested and working parts, I have too many and not enough time to use them before my eyes give up close work! All parts have been taken from complete working units. Hoping these bits and bobs will help you get your 33 up and running again.Be aware though that there will be security markings on some parts due to a few unpleasant experiences in the past. There may be some slight damage to the wiring from the desoldering operation but nothing that cannot be easily repaired as you fit them. Photos form part of the description and if you require any more or information of any kind it is only a message away! Always happy to discuss vintage QUAD problems, I have experienced most of the common faults multiple times! Happy to combine postage on multiple sales. Will use the appropriate service dependant on total price and weight.All parcels will be insured to the value within. Thank you for looking.

QUAD 33 Pre Amplifier Spare parts 3 x 28mm Filter Pots Bass Treble Slope These are 28mm Long Throw All 3 28mm Potentiometers included, all original, unmolested fully working, treated with Servisol, no noise.NOTE. The filter pot can only be used for this application, it will not work as a volume pot! IMPORTANT NOTEThis might get a little confusing but QUAD used different potentiometers over the years and you will need to match them up if you want your wheel rotation to register properly on the front plate.There is 2 can diameters 24mm and 28mm (both approx sizes)Both type cans can have long or shorter rotationSee the listing photo to match your filter wheels and choose the type you need.Message me after purchase to confirm. It’s easier to find your type by looking at the “slope” wheel, it’s graduations have a greater variation, the bass and treble wheels are not so easy to differentiate, if in doubt message me. For this reason I only sell them as a group of 3. Filter wheels not included in sale. From my personal collection of used tested and working parts, I have too many and not enough time to use them before my eyes give up close work! All parts have been taken from complete working units. Hoping these bits and bobs will help you get your 33 up and running again.Be aware though that there will be security markings on some parts due to a few unpleasant experiences in the past. There may be some slight damage to the wiring from the desoldering operation but nothing that cannot be easily repaired as you fit them. Photos form part of the description and if you require any more or information of any kind it is only a message away! Always happy to discuss vintage QUAD problems, I have experienced most of the common faults multiple times! Happy to combine postage on multiple sales. Will use the appropriate service dependant on total price and weight.All parcels will be insured to the value within. Thank you for looking.

QUAD 33 Pre Amplifier Spare parts 3 x 24mm Filter Pots Bass Treble Slope These are 24mm Short Throw All 3 24mm Potentiometers included, all original, unmolested fully working, treated with Servisol, no noise.NOTE. The filter pot can only be used for this application, it will not work as a volume pot! IMPORTANT NOTEThis might get a little confusing but QUAD used different potentiometers over the years and you will need to match them up if you want your wheel rotation to register properly on the front plate.There is 2 can diameters 24mm and 28mm (both approx sizes)Both type cans can have long or shorter rotationSee the listing photo to match your filter wheels and choose the type you need.Message me after purchase to confirm. It’s easier to find your type by looking at the “slope” wheel, it’s graduations have a greater variation, the bass and treble wheels are not so easy to differentiate, if in doubt message me. For this reason I only sell them as a group of 3. Filter wheels not included in sale. From my personal collection of used tested and working parts, I have too many and not enough time to use them before my eyes give up close work! All parts have been taken from complete working units. Hoping these bits and bobs will help you get your 33 up and running again.Be aware though that there will be security markings on some parts due to a few unpleasant experiences in the past. There may be some slight damage to the wiring from the desoldering operation but nothing that cannot be easily repaired as you fit them. Photos form part of the description and if you require any more or information of any kind it is only a message away! Always happy to discuss vintage QUAD problems, I have experienced most of the common faults multiple times! Happy to combine postage on multiple sales. Will use the appropriate service dependant on total price and weight.All parcels will be insured to the value within. Thank you for looking.

QUAD 33 Pre Amplifier Spare parts 3 x 28mm Filter Pots Bass Treble Slope These are 28mm Long Throw All 3 28mm Potentiometers included, all original, unmolested fully working, treated with Servisol, no noise.NOTE. The filter pot can only be used for this application, it will not work as a volume pot! IMPORTANT NOTEThis might get a little confusing but QUAD used different potentiometers over the years and you will need to match them up if you want your wheel rotation to register properly on the front plate.There is 2 can diameters 24mm and 28mm (both approx sizes)Both type cans can have long or shorter rotationSee the listing photo to match your filter wheels and choose the type you need.Message me after purchase to confirm. It’s easier to find your type by looking at the “slope” wheel, it’s graduations have a greater variation, the bass and treble wheels are not so easy to differentiate, if in doubt message me. For this reason I only sell them as a group of 3. Filter wheels not included in sale. From my personal collection of used tested and working parts, I have too many and not enough time to use them before my eyes give up close work! All parts have been taken from complete working units. Hoping these bits and bobs will help you get your 33 up and running again.Be aware though that there will be security markings on some parts due to a few unpleasant experiences in the past. There may be some slight damage to the wiring from the desoldering operation but nothing that cannot be easily repaired as you fit them. Photos form part of the description and if you require any more or information of any kind it is only a message away! Always happy to discuss vintage QUAD problems, I have experienced most of the common faults multiple times! Happy to combine postage on multiple sales. Will use the appropriate service dependant on total price and weight.All parcels will be insured to the value within. Thank you for looking.

QUAD 33 Pre Amplifier Spare parts 3 x 24mm Filter Pots Bass Treble Slope These are 24mm Short Throw All 3 24mm Potentiometers included, all original, unmolested fully working, treated with Servisol, no noise.NOTE. The filter pot can only be used for this application, it will not work as a volume pot! IMPORTANT NOTEThis might get a little confusing but QUAD used different potentiometers over the years and you will need to match them up if you want your wheel rotation to register properly on the front plate.There is 2 can diameters 24mm and 28mm (both approx sizes)Both type cans can have long or shorter rotationSee the listing photo to match your filter wheels and choose the type you need.Message me after purchase to confirm. It’s easier to find your type by looking at the “slope” wheel, it’s graduations have a greater variation, the bass and treble wheels are not so easy to differentiate, if in doubt message me. For this reason I only sell them as a group of 3. Filter wheels not included in sale. From my personal collection of used tested and working parts, I have too many and not enough time to use them before my eyes give up close work! All parts have been taken from complete working units. Hoping these bits and bobs will help you get your 33 up and running again.Be aware though that there will be security markings on some parts due to a few unpleasant experiences in the past. There may be some slight damage to the wiring from the desoldering operation but nothing that cannot be easily repaired as you fit them. Photos form part of the description and if you require any more or information of any kind it is only a message away! Always happy to discuss vintage QUAD problems, I have experienced most of the common faults multiple times! Happy to combine postage on multiple sales. Will use the appropriate service dependant on total price and weight.All parcels will be insured to the value within. Thank you for looking.

QUAD 33 Pre Amplifier Spare parts 3 x 24mm Filter Pots Bass Treble Slope These are 24mm Long Throw All 3 24mm Potentiometers included, all original, unmolested fully working, treated with Servisol, no noise.NOTE. The filter pot can only be used for this application, it will not work as a volume pot! IMPORTANT NOTEThis might get a little confusing but QUAD used different potentiometers over the years and you will need to match them up if you want your wheel rotation to register properly on the front plate.There is 2 can diameters 24mm and 28mm (both approx sizes)Both type cans can have long or shorter rotationSee the listing photo to match your filter wheels and choose the type you need.Message me after purchase to confirm. It’s easier to find your type by looking at the “slope” wheel, it’s graduations have a greater variation, the bass and treble wheels are not so easy to differentiate, if in doubt message me. For this reason I only sell them as a group of 3. Filter wheels not included in sale. From my personal collection of used tested and working parts, I have too many and not enough time to use them before my eyes give up close work! All parts have been taken from complete working units. Hoping these bits and bobs will help you get your 33 up and running again.Be aware though that there will be security markings on some parts due to a few unpleasant experiences in the past. There may be some slight damage to the wiring from the desoldering operation but nothing that cannot be easily repaired as you fit them. Photos form part of the description and if you require any more or information of any kind it is only a message away! Always happy to discuss vintage QUAD problems, I have experienced most of the common faults multiple times! Happy to combine postage on multiple sales. Will use the appropriate service dependant on total price and weight.All parcels will be insured to the value within. Thank you for looking.

QUAD 33 Pre Amplifier Spare parts 3 x 28mm Filter Pots Bass Treble Slope These are 28mm All Short Throw All 3 28mm Potentiometers included, all original, unmolested fully working, treated with Servisol, no noise.NOTE. The filter pot can only be used for this application, it will not work as a volume pot! IMPORTANT NOTEThis might get a little confusing but QUAD used different potentiometers over the years and you will need to match them up if you want your wheel rotation to register properly on the front plate.There is 2 can diameters 24mm and 28mm (both approx sizes)Both type cans can have long or shorter rotationSee the listing photo to match your filter wheels and choose the type you need.Message me after purchase to confirm. It’s easier to find your type by looking at the “slope” wheel, it’s graduations have a greater variation, the bass and treble wheels are not so easy to differentiate, if in doubt message me. For this reason I only sell them as a group of 3. Filter wheels not included in sale. From my personal collection of used tested and working parts, I have too many and not enough time to use them before my eyes give up close work! All parts have been taken from complete working units. Hoping these bits and bobs will help you get your 33 up and running again.Be aware though that there will be security markings on some parts due to a few unpleasant experiences in the past. There may be some slight damage to the wiring from the desoldering operation but nothing that cannot be easily repaired as you fit them. Photos form part of the description and if you require any more or information of any kind it is only a message away! Always happy to discuss vintage QUAD problems, I have experienced most of the common faults multiple times! Happy to combine postage on multiple sales. Will use the appropriate service dependant on total price and weight.All parcels will be insured to the value within. Thank you for looking.