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Bassett Electronics Scored a new amp this weekend. Provenance to ARRL 1958




 
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Author Topic: Bassett Electronics Scored a new amp this weekend. Provenance to ARRL 1958  (Read 264 times)
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KD6VXI
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« on: November 12, 2017, 05:32:14 PM »

Scored a new to me amp this weekend.

Bassett Electronics Gg330.  Runs a single 4-1000 in grounded grid service.

Has 30 amp fuses in the live and neutral leads of the 110 circuit.....  And is a 4kw pep ssb / 2 kw CW input amp!

Vacuum variables for both tune and load.  Vacuum relay for antenna changeover.

Although a supposed military and aerospace electronics manufacturer, the paperwork I got with this amp says that this was used as a presentation model at an August 1958 ARRL Convention in Washington DC.

I have a few typewritten pages, along with a handwritten operation and installation manual.  Oddly, the typewritten pages show it as 'handling a kw input power with ease'....  The handwritten notes show '2000 Watt CW / 4000 Watt pep' as the input power rating.

The power supply is a //few// hundred pounds.  One gargantuan transformer, a couple fil xformers for the 3b28 rectifiers (it's already solid stated), two oil caps and a choke.  Complete with art deco / Collins styling.

Power supply has a few mouse turds, and a VERY minimal amount of chewing in the hv lead (the mouse liked that insulation.  The other wires all appeared OK) so I need to clean that portion up.  It has a 3 and 4 kv tap (high and low) which it states 'due to the robustness of components used, may be switched during tx'....  Right. Lol. 


I'll add pix as I take them.  I got no interconnect cables, so I'm on the hunt for a 12 pin cinch Jones plug and socket.  One male and one female, both cord ends.  And a pair of those damn Millen hv connectors.

Designed for HT32, FPM-200, KWM2 or 32S-1 drive levels.

The power supply of this beast (3kw ccs it states) probably weighs as much as my Harris RF103....  Which is in the couple hundred lbs department.

Pix attached.

The 4-1000 viewing window is the ultimate of cool!

--Shane
KD6VXI 


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KD6VXI
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« Reply #1 on: November 12, 2017, 05:41:52 PM »

Quick power supply pics

Love the solid state 3B28 stacks with the plate caps!

--Shane
KD6VXI


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Steve - K4HX
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« Reply #2 on: November 12, 2017, 06:07:05 PM »

VERY cool!  Nice find.
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Opcom
Patrick J. / KD5OEI
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« Reply #3 on: November 12, 2017, 08:47:18 PM »

Nice to see a power supply choke the same size as most amps' plate transformers!
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