[ARC5] 6AG7 and 6AG7Y

[Fuqua, William L.]

Wow, now I am impressed by these tubes.
In the Navy MAR UHF receiver a 6AG7 is used as a oscillator doubler but then after two 6C4 tripplers the 6AG7Y is used as a VHF high level mixer!!!!!!

73
Bill wa4lav
________________________________
From: arc5-bounces at mailman.qth.net <arc5-bounces at mailman.qth.net> on behalf of Al Klase <ark at ar88.net>
Sent: Sunday, July 18, 2021 8:53 PM
To: arc5 at mailman.qth.net <arc5 at mailman.qth.net>
Subject: Re: [ARC5] 6AG7 and 6AG7Y

CAUTION: External Sender

Bill,

Here's the listing from Lud Sibley's "Tube Lore II" a book you should not be without.  It fills in the chink between what we find in the usual tube manuals.

[cid:part1.FCFE0BE9.E5739F02 at ar88.net]

Micanol is mica filled Bakelite (brown stuff) for low loss at high frequencies.   All the one's I see were JAN spec, which generally means tighter inspection at the factory.   There might not be a lot of difference between 6AG7 and 6AG7Y in the real world.

Al


On 7/18/2021 8:19 PM, Fuqua, William L. wrote:
Does anyone know the difference between the 6AG7 and 6AG7Y tubes?
Can't find full spec on Y but I do know there is a big difference between the 4CX300A and 4CX300Y tubes.
Maybe the 6AG7Y is later more durable tube???

73
Bill wa4lav



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Al Klase - N3FRQ
Jersey City, NJ
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