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Re: Building my first amplifier. Where to start?


 

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Love it!

I run a YC156 in my homebrew amp.? It's way way way overkill but at 4.3KV, it runs limit power without trouble and I don't have to worry about breaking the tube.? I've got a number of now-dead amps that were killed in RTTY contesting; death by a variety of things.? But the YC156 is pretty much bullet proof save for needing to keep an eye on the grid current.? At the low B+, it's the limiting factor from a tube risk standpoint.??

A buddy of mine convinced me to buy his 15K because it will sit in the same socket and would look great.? I put it in to make sure it was operational, which it was, but it's operationally no different than the YC156 and with the lid on, it's hard to see the cool look feature.?

The funny part is that since I got the FLEX PGXL which will run So2r and does just fine under RTTY whipping conditions, I hardly use the old tube amp now.? The Flex is just a lot more convenient.

73/jeff/ac0c
alpha-charlie-zero-charlie
On 12/24/2023 9:37 PM, HaL Mandel wrote:

Hi Jeff!

?

Merry Christmas.

?

I can just imagine two (2), 3CX15,000A7¡¯s,

in Push-Pull,

?

Modulated with two (2), 3CX15,000A7¡¯s.

?

Riley Hollingsworth would personally lead

the arrest, complete with Thompson .45¡¯s.

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Some years ago, the main power transformer

was robbed from the Beverly-Ann Coal Tipple

in David, Kentucky.

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They got a 20,000 pound hunk out of the mine

with two feet of mud everywhere, and nobody

knows a thing¡­

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Best, Jeff.

?

Hal

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