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Hoffman Amps Forum image Author Topic: 2144 60/30  (Read 2080 times)

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Offline TIMBO

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2144 60/30
« on: February 16, 2024, 08:34:25 pm »
Hey guys, Chassis with massive transformers has dusted off and a new direction from the original "BIG AMP" build from sometime ago.
I really like the 2144/EL84 sound and having FOUR BIG (see what I did there  :l2: ) gotta sound even better.
I'm not sure what the voltage doubler will put out, looking at approx. 60w, yeah I know "what a waste" but the 6l6GC were cheap and the chassis already had sockets.
A half power switch will be added for either Pentode/Triode or switching out two power valves.
15k grid stoppers should be 1.5k

« Last Edit: February 17, 2024, 09:11:09 pm by TIMBO »

Offline glass54

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Re: 2144 60/30
« Reply #1 on: February 16, 2024, 09:06:10 pm »
Hi Timbo
Quote
yeah I know "what a waste" but the 6l6GC were cheap
.
Do not be worried, you've got them and we're jealous!! :l2:
Looking forward to see the schematic and tested voltages of your Power Supply.
Kind regards
Mirek
"To measure is to know"

Offline shooter

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Re: 2144 60/30
« Reply #2 on: February 17, 2024, 03:50:19 am »
the Ausie speaker confused me  :icon_biggrin:
are you going from 6L6 to EL84?
I did a QSE of them, well used 6BQ5's, in an Audio build, still the best audio PA i've build.
measured 22W clean, didn't like to distort but it's SE not PP
Went Class C for efficiency

Offline TIMBO

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Re: 2144 60/30
« Reply #3 on: February 17, 2024, 04:03:09 am »
Hey shooter, This was the original build
BIG AMP (el34world.com)

 


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