Mullard, British MadeMatched Pair of GZ37 CV378 Rectifier Valves TubesRectangle GettersFully Tested on AVO VCM 16390/90 & 89/89Used, Supplied in White Boxes

Mullard Cossor valve with lollipop hanging getter. GZ37 - 53KU - CV378 Rare Valve NOS, testing great. Without Box. Early Version Brown Base Will be well packaged for safe delivery. No returns due to people switching good valves for bad. Thanks for looking

1x Mullard CV378 Valve Date Code: IS1 B7D1 Tested by AVO VCM Tester D1 = 73, D2 = 73 GOOD begins at 53 *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20220828L032

RARE MATCHED PAIR OF MULLARD BLACKBURN CV378 GZ37 1964 WHITE PRINT ONE HAS THE ETCH CODE CODE B8D2, THE OTHER THE CODE CAN NOT BE SEEN, BUT BOTH HAVE THE SAME MILITARY IDENTIFYING DATE CODE ZE SO WOULD IMAGINE THE SAME BATCH FROM APRIL 1968 TESTED ON MY AVO VCM163 GOOD USED CONDITION - BOTH TUBES TEST STRONG CLASSIC BRITISH TUBES IN PERFECT WORKING ORDER PLEASE MAKE PAYMENT IMMEDIATELY AS I WILL BE GOING ON HOLIDAY SHORTLY AFTERIF PAYMENT IS NOT RECEIVED IN TIME I WILL NOT BE ABLE TO SHIP UNTIL THE 15TH AUGUST - BY BIDDING ON THIS AUCTION YOU ACCEPT THESE CONDITIONS PLEASE SEE MY OTHER AUCTIONS PAYMENT IS REQUESTED WITHIN 24 HOURS PLEASE !

NO RESERVE!! Pair Mullard CV378 Vacuum tubes! Please see the detailed pictures and info You are bidding on a pair of Vintage Mullard CV378 vacuum tubes . made by Mullard in the UK. They both test within the new old stock rating. Tubes feature grey plates with 3 mica construction and bottom D getters. Tubes have been tested on a recently calibrated Hickok TV7 tube tester with a digital meter. Tubes test as follows:Tube 1 : 49.4/49.4 Tube 2 : 48.8/49.2 Minimum good test value on a TV7 tester for an CV378 tube is 40. The tubes test within the NOS range. Tubes are guaranteed to be in good working order within one week of delivery. If a tube ends up bad just send it back for a refund on the cost of the bad tube. Shipping costs will not be reimbursed . See pictures for details. If you have any questions please email. I will ship worldwide.Buyer to pay all shipping costs including brokerage and taxes if any. Item is located in Canada but will be shipped with the USPS for USA buyers or Canada Post for Canadian buyers. For overseas buyers : Please email for options as sometimes Canada post is cheaper for overseas shipping with Surface post. Please wait for my invoice before paying to avoid any hassles. I do combine shipping to save you costs! See my other auctions for more vintage audio gear! Local pickup in Vancouver BC is also available. GOOD LUCK!!!!!!!

NO RESERVE!! Pair GEC labeled Mazda and Mullard U54 Vacuum tubes! Please see the detailed pictures and info You are bidding on a pair of Vintage U54 vacuum tubes . Both have the GEC logo. One is made by Mullard and the other Mazda. They both test within the new old stock rating. They come with generic white boxes. Tubes feature grey plates with 3 mica construction and bottom D getters. Tubes have been tested on a recently calibrated Hickok TV7 tube tester with a digital meter. Tubes test as follows:Tube 1 : 50.2/50.0 Tube 2 : 50.2/48.8 Minimum good test value on a TV7 tester for an U54 tube is 40. The tubes test within the NOS range. Tubes are guaranteed to be in good working order within one week of delivery. If a tube ends up bad just send it back for a refund on the cost of the bad tube. Shipping costs will not be reimbursed . See pictures for details. If you have any questions please email. I will ship worldwide.Buyer to pay all shipping costs including brokerage and taxes if any. Item is located in Canada but will be shipped with the USPS for USA buyers or Canada Post for Canadian buyers. For overseas buyers : Please email for options as sometimes Canada post is cheaper for overseas shipping with Surface post. Please wait for my invoice before paying to avoid any hassles. I do combine shipping to save you costs! See my other auctions for more vintage audio gear! Local pickup in Vancouver BC is also available. GOOD LUCK!!!!!!!

Selling for the estate of a friend. I have no way to test this, but if you have a problem, let me know and Ill take care of it. I wont stick you with a tube that doesnt work. Tubes will ship in generic tube box. Check my other tube listings - additional tubes s

1x Mullard CV378 Valve Date Code: IS1 B7D1 Tested by AVO VCM Tester D1 = 73, D2 = 73 GOOD begins at 53 *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20220828L032

Mullard GZ37 CV378 Rectifiers ideal replacement to 5AR4 GZ34 - Test Strong pair Click images to enlarge Description   Mullard BVA - Made in England GZ37 CV378 rectifiers, missing guide pin. USED ideal for valve amplifiers test strong 1950/60s. A highly desirable pair of Mullard, Made in England CV378 GZ37 full wave rectifiers, USED, (missing guide pin although insertion into the socket will be clearly marked.)  and test strong. Ideal as a rectifier for Leak, Armstrong, Pye, Fisher or Scott or Heath valve amplifiers that employ a GZ34, although the GZ37 is slightly more rugged. These are the tall ST bulb type and were first introduced in 1958. A very robust rectifier capable of delivering 500Volts at 250MA ST shoulder type with a large 1-inch Bakelite base. Have been tested on my AVO valve characteristic tester and very closely matched sections. test strong. Test results Tube1) 71/70, and Tube 70/70 Will ship anywhere in the world at buyer expense. Please check out my other auctions for equally rare vintage tubes. NO RESERVE-small starting bid. Images sell! Get Supersized Images & Free Image HostingCreate your brand with Auctivas Customizable Templates. Attention Sellers - Get Templates Image Hosting, Scheduling at Auctiva.com. Track Page Views WithAuctivas Counter

Vintage Valve: VP4 Make: Mullard Pentode ref 917z5Tested: yes 69%New Old Stock: noUsed: yesPhysical condition: Used Equivalents for this valve if given will appear in title.FREE POSTWe will endeavour to describe valves as accurately as possible, if a valve is stated as Tested , these results are given in good faith, please keep in mind however that all vintage valves (and the boxes they may be sold in ) will be decades old, (including new old stock a.k.a. NOS) and should not be regarded as new, unless otherwise stated . Many thanks

Normal 0 false false false EN-AU X-NONE X-NONE MicrosoftInternetExplorer4 Tested on my B&K 747 Dynamic Mutual Conductance tube tester, the tubes test as followsAs such, the 200 µF filtering capacitor will guarantee minimum hum. Anode 1 / 2 – 72/72 where a nominal spec is 70 and the minimum good is 40. The tube has very clean glass bottle, brown micanol base consistent with military specs, charcoal anodes, part of the print is almost gone, removing the tube from its box could easily be responsible. No sign of usage at all. There are neither shorts nor gas; the tube comes in a bulk wrapping. When considering vintage tubes the potential buyer must realize that these items are very delicate electromechanical devices often being over 50 to 70 years old, so no guaranty of any kind can be offered, as such, I sell them as they are. Finally, I am certain that your tube tester readings will differ from mine. ALSO, PLEASE TAKE NOTICE: ALL MY ITEMS ARE ADVERTISED ON OTHER PAGES AND AS SUCH THIS AUCTION MAY BE FINISHED WITHOUT ANY NOTICE. PLEASE DISREGARD EBAY POSTAGE, DO NOT PAY UNTIL I SEND YOU INVOICE, AS THE POSTAGE WILL VARY DEPENDING ON YOUR LOCATION. In any case postage can be calculated using Australia Post parcel calculator from Melbourne, Australia to your destination, based on 600gms box 32 x 25cm x 20cm. Happy bidding

1x Mullard CV378 Valve Date Code: IS1 B7D1 Tested by AVO VCM Tester D1 = 73, D2 = 73 GOOD begins at 53 *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20220828L032

Mullard GZ37 CV378 Rectifiers ideal replacement to 5AR4 GZ34 - Test Strong pair Click images to enlarge Description   Mullard BVA - Made in England GZ37 CV378 rectifiers, missing guide pin. USED ideal for valve amplifiers test strong 1950/60s. A highly desirable pair of Mullard, Made in England CV378 GZ37 full wave rectifiers, USED, (missing guide pin although insertion into the socket will be clearly marked.)  and test strong. Ideal as a rectifier for Leak, Armstrong, Pye, Fisher or Scott or Heath valve amplifiers that employ a GZ34, although the GZ37 is slightly more rugged. These are the tall ST bulb type and were first introduced in 1958. A very robust rectifier capable of delivering 500Volts at 250MA ST shoulder type with a large 1-inch Bakelite base. Have been tested on my AVO valve characteristic tester and very closely matched sections. test strong. Test results Tube1) 71/70, and Tube 70/70 Will ship anywhere in the world at buyer expense. Please check out my other auctions for equally rare vintage tubes. NO RESERVE-small starting bid. Images sell! Get Supersized Images & Free Image HostingCreate your brand with Auctivas Customizable Templates. Attention Sellers - Get Templates Image Hosting, Scheduling at Auctiva.com. Track Page Views WithAuctivas Counter

Normal 0 false false false EN-CA X-NONE X-NONE MicrosoftInternetExplorer4

MULLARD GZ32 VALVE CV378 BRITISH LOOKS NEW IN CARD WRAP GOOD QUALITY

Normal 0 false false false EN-AU X-NONE X-NONE MicrosoftInternetExplorer4 The GZ33 shares base pin layout with the GZ32 and the GZ34; all are full wave rectifiers with a rating of 500 Volts for the anodes. The GZ34 is an upgrade to the GZ32 and both are rated at 125 mA rectified current. The GZ33 however, as a high current version and is rated at 250 mA rectified current, and unlike its lower rated counterparts is not given a maximum reservoir current rating, but 200 µF would seem a maximum value that would be used in practice. As such, the 200 µF filtering capacitor will guarantee minimum hum. Anode 1 / 2 – 72/72 where a nominal spec is 70 and the minimum good is 40. The tube has very clean glass bottle, brown micanol base consistent with military specs, charcoal anodes, part of the print is almost gone, removing the tube from its box could easily be responsible. No sign of usage at all. There are neither shorts nor gas; the tube comes in a bulk wrapping. When considering vintage tubes the potential buyer must realize that these items are very delicate electromechanical devices often being over 50 to 70 years old, so no guaranty of any kind can be offered, as such, I sell them as they are. Finally, I am certain that your tube tester readings will differ from mine. ALSO, PLEASE TAKE NOTICE: ALL MY ITEMS ARE ADVERTISED ON OTHER PAGES AND AS SUCH THIS AUCTION MAY BE FINISHED WITHOUT ANY NOTICE. PLEASE DISREGARD EBAY POSTAGE, DO NOT PAY UNTIL I SEND YOU INVOICE, AS THE POSTAGE WILL VARY DEPENDING ON YOUR LOCATION. In any case postage can be calculated using Australia Post parcel calculator from Melbourne, Australia to your destination, based on 600gms box 32 x 25cm x 20cm. Happy bidding