Скачать или смотреть Unboxing A Pinnacle 6AG7 Audio Output Pentode Vacuum Tube

Unboxing a Pinnacle 6AG7 audio output pentode vacuum tube. The valve is probably new but has been rebranded & reboxed by Pinnacle Electronics (NOS New Old Stock). The valve base is a black international octal A08 K8A. The IO base does not have the usual 'LICENSED ONLY TO THE EXTENT INDICATED ON CARTON' on the bottom. The valve has no top connection cap. Printed in white on the black metal case is the Pinnacle logo & 6AG7. Printed on the box is Pinnacle & 6AG7. The type 6AG7 was first introduced in 1939 & has a heater filament voltage requirement of 6.3 volts.

For more information on this valve:
http://www.r-type.org/exhib/aaa0898.htm (RCA 6AG7 version)
http://www.r-type.org/exhib/aaa0042.htm (Westinghouse 6AG7 version)
http://www.r-type.org/exhib/acl0016.htm (RCA 6AG7 VT-247 version)
https://www.radiomuseum.org/tubes/tub... (6AG7 version)
https://www.radiomuseum.org/tubes/tub... (6AG7 VT-247 version)
https://www.radiomuseum.org/tubes/tub... (6П9 version)
http://www.r-type.org/pdfs/6ag7.pdf (General Electric 6AG7 Datasheet Pdf)

Pinnacle were a valve rebrander & did not manufacture their own vacuum tubes. It has been suggested on several forums that Pinnacle also traded using the De Banks name. Reference: Les Carpenter G4CNH posting on DiyAudio.com via the R-Type Valve Museum
http://www.r-type.org/static/makepinn...

An interesting thread about Pinnacle & Tungsram valves can be found on Vintage Radio Net
https://www.vintage-radio.net/forum/s...
Reference: dazzlevision
"Pinnacle - "Pick of the World's Valves". That used to be their slogan.
When I first left school, I worked in a small TV and radio shop for a couple of years and well remember the Pinnacle rep calling in every month to replenish the valves that we had used. You could see from the style of the glass pinch seals, internal construction and production markings, that they were sourced from a wide range of original manufacturers, but I never had any problems with them. Here is all I have found out about the company:
Pinnacle Electronics Ltd, 27a Howland Street, London, W1 (in 1955 & 64). In 1955, they introduced a range of valves for the TV and Radio trade (sold by wholesalers and later, reps.). In 1958, the Managing Director was David Toms. In 1964 & 70, at Achilles Street, New Cross, London, SE14. In 1977, Pinnacle Electronic Components, Electron House, Cray Avenue, St Mary Cray, Orpington, Kent. Valve supplier – later semiconductors and stylii. Still going in 1978, with a range of valves, transistors, triplers, record/tape care kits and styli."

American Metal Valves:
http://www.r-type.org/articles/art-01...

BVA The British Radio and Valve Manufacturers' Association
https://en.wikipedia.org/wiki/British...

For information on old stores part numbers:
https://frank.pocnet.net/other/Servic...

Vacuum tube, thermionic valve, electron tube
https://en.wikipedia.org/wiki/Vacuum_...

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Videoed on Tuesday, 29th March 2022 © Mike Fairman 2022 Worcester

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