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

GZ37 Mullard New Old Stock Valve Tube AVO Tested Good strong emission from both rectifier sections.

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!!!!!!!

GZ37 Mullard New Old Stock Valve Tube AVO Tested

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

Hello all, here we have a Mullard U54 GZ33 / GZ37 tall long plate rectifier valve. Made in Britain, rectangular getter type. Bakelite base. Both sides test 100% and it is balanced. The etch code is R81 B7J Items will be very well packed for delivery. Thanks for looking. Past Times Radio

Hello all, here we have a Marconi (made by Mullard) U54 GZ33 / GZ37 tall long plate rectifier valve. Made in Britain, rectangular getter type. Bakelite base. Both sides test 100% and it is perfectly balanced. The etch code is IS1 B0E Items will be very well packed for delivery. Thanks for looking. Past Times Radio

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

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GZ37 Mullard New Old Stock Valve Tube AVO Tested

2 x Vintage Mullard GZ37 Rectifier Valves. They are used and in working condition. They were made by Mullard, in the UK, around the 1950s. They are loose and not in their boxes. There are 2 xGZ37 Full Wave Rectifier Valves.

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

GZ37 Mullard New Old Stock Valve Tube AVO Tested