That's going to be a hot and noisy way of generating power! These amps
run class A.
On lost-manuals.com there's some info. on the 350L and more info. on
others in the range, including 3100L which is likely to be very similar
to your 350, but with double the number of o/p stages.
There's also 325LA and 3100LA which were later versions so it's worth
comparing what's inside yours against those.
A lot of the rf power transistors came from CTC/Acrian, mostly generic
devices but with custom marking.
You could also try www.eandiltd.com for the outfit which picked up the
pieces after the orginal ENI went under. They still list 350L as a product.
Steve
I have aquired a EIN 350L class A rf amplifer ( analogue meter covering 150Hkz
- 105 Mhz ) which I want to use on 470Khz. I am looking for a copy of the
service manual for this amplifier if anyone can help. Enquiries to the local
dealers have not turned up any reply. The inside is extremely dusty and needs a
good clean out ( standing for years ) which I have begun in stages, but am
awaiting a high pressure blower off amazon to get to those hard to get places.
The amp works using my WSPRLite tx with an attenuator in series....The amp is
made in Rochester N.Y.
ThanksJohn M0ELS
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