Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: ululufut on August 03, 2017, 09:09:36 pm

Title: Has Anyone Heard of the Natco Company from the 1950's?
Post by: ululufut on August 03, 2017, 09:09:36 pm

I picked up an interesting looking vintage piece today that I'd like to convert into a guitar amp. It's a 1956 (I think) Natco film projector amplifier. The stock speaker is a Jensen Alnico 5, and it has a nice big power transformer. The GE tubes appear to be original - they lit up fine when I plugged the amp in, although it's hard wired for the projector input, so I had to roll the dice on it.

I haven't found any forums where this unit is being talked about - just wondering if anyone has heard of it. I'm guessing I should be able to get a decent sounding amp after I've modified the circuit for guitar.

Title: Re: Has Anyone Heard of the Natco Company from the 1950's?
Post by: TIMBO on August 04, 2017, 01:30:32 am

Nice score mate, Are the power tubes 2A3?

Title: Re: Has Anyone Heard of the Natco Company from the 1950's?
Post by: PRR on August 04, 2017, 12:57:01 pm

http://www.radiomuseum.org/r/natcofilm_amplifier_3048.html (http://www.radiomuseum.org/r/natcofilm_amplifier_3048.html)
Year: 1956 ??
Valves / Tubes    4: 6SL7 6L6 6L6 5Y3