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Hoffman Amps Forum image Author Topic: OK this is deja-vu.  (Read 3194 times)

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Offline DummyLoad

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OK this is deja-vu.
« on: December 05, 2014, 07:17:35 am »
someone though of this before i. :-\

remember that amp - casino el camino...

http://el34world.com/Forum/index.php?topic=17584.msg178898#msg178898

http://el34world.com/charts/Schematics/files/kay/kay_820.pdf

hmmm...

love the power source scheme for G2 of the 7199. :-) clever.

--pete




EDIT: yet another: http://el34world.com/charts/Schematics/files/kay/kay720.pdf
« Last Edit: December 05, 2014, 07:20:35 am by DummyLoad »

Offline kagliostro

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Re: OK this is deja-vu.
« Reply #1 on: December 05, 2014, 01:28:55 pm »
There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy.  :grin:

 :thumbsup:

Franco
The world is a nice place if there is health and there are friends

Offline PRR

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Re: OK this is deja-vu.
« Reply #2 on: December 05, 2014, 01:44:16 pm »
> OK this is deja-vu

Again?? Again??

The 720 and 820 are identical circuits. Any difference must be speakers or covering.

Offline DummyLoad

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Re: OK this is deja-vu.
« Reply #3 on: December 05, 2014, 06:24:21 pm »
> OK this is deja-vu

Again?? Again??

The 720 and 820 are identical circuits. Any difference must be speakers or covering.


they are diff. model #'s so they're different! :-P


--pete

Offline PRR

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Re: OK this is deja-vu.
« Reply #4 on: December 06, 2014, 09:45:51 pm »
> power source scheme for G2 of the 7199

Here's a fairly extreme example.

https://pdf.yt/d/IF5cidwbWyNkKO9Z  1.5MB PDF

Offline DummyLoad

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Re: OK this is deja-vu.
« Reply #5 on: December 06, 2014, 10:25:32 pm »
cool. thanks for sharing that.

you think that it would make a decent stomp box for fuzz?

at least the chassis is still made - BOM states "Bud CU3006A or equiv."

http://www.budind.com/view/Small+Metal+Electronics+Enclosures/Miniboxes

--pete

Offline PRR

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Re: OK this is deja-vu.
« Reply #6 on: December 10, 2014, 11:33:00 am »
> stomp box

Seems large. (Note the power supply was separate.) And 6AQ5 at those conditions will output 2 or 3 Watts--- a lot for guitar-cord. And like why the Herzog was invented, sustained overdrive without a load will zap the OT.

Offline DummyLoad

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Re: OK this is deja-vu.
« Reply #7 on: December 10, 2014, 08:28:36 pm »
And like why the Herzog was invented, sustained overdrive without a load will zap the OT.

i gathered that. respectfully, i was asking if weather or not you thought it would make an interesting overdrive effect. and yes, we'd need a similar arrangement to the herzog to tame output to plug into amp.

--pete

 


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