Small SE amp with no pre-amp

ask your general tube related questions here

Small SE amp with no pre-amp

Postby Vernrich » Wed Jun 15, 2016 11:50 pm

Hi, new to the forum, tinkered with tube stuff a few years ago and would like to get back into it. A while ago I picked up an old console with a cool little SE amp inside. It was connected to the radio/turntable by a cable that provided an input signal and also power. The power amp has the power transformer, power caps, output trans and output tubes. The pre-amp tube/stage is located on the radio/turntable chassis. I would like to just run the power amp but need to add an input tube or input stage. Can anyone point me in the direction of something easy to setup or should I buy a small pre-amp to hook up to the power amp?

Richard
Vernrich
 
Posts: 2
Joined: Tue Jun 14, 2016 11:06 pm

Re: Small SE amp with no pre-amp

Postby bone » Thu Jun 16, 2016 3:32 am

A schematic would help, can you trace what you have?
bone
 
Posts: 10
Joined: Thu Oct 07, 2010 8:53 am

Re: Small SE amp with no pre-amp

Postby Vernrich » Thu Jun 16, 2016 7:13 am

I'll give it a crack this evening.
Vernrich
 
Posts: 2
Joined: Tue Jun 14, 2016 11:06 pm

Re: Small SE amp with no pre-amp

Postby soundbrigade » Thu Jun 23, 2016 10:39 am

Many smallish (and biggish) tube power amps can be "converted" into full amps by just adding a 50 ... 100K audio potentiometer to the input. Without having seen your amp a fair guess is - it can be done easily. (Propably :/ )
Magnus

"It is always more difficult to fight against faith than against knowledge."
User avatar
soundbrigade
KT88
 
Posts: 1759
Joined: Mon Jan 28, 2008 4:57 am
Location: Little Paris, Sweden


Return to tube 101

Who is online

Users browsing this forum: No registered users and 1 guest