Heathkit SB201

[238]

I was given a SB201. The band switch only has 15M , no 10M. If you want to run on 10/11M what do you have to do? I have put a new capacitor board in it. Transformer checks ok. Have not triad too run it yet, it does light up. Jim/238

 

[BJ radionut]

Lots of Info: I know. However important info on the possible 50-year-old amplifier. The SB200 and the SB201 are the same amplifier.
The SB201 did NOT have 10 meters installed due to FCC changes in rules at that time.

SB-200 Restoration and Modifications

Heathkit SB201a

I am having a problem with a Heathkit 201a it started out as on the back next to tubes a 28uh choke, 3300 ohm resistor and the .02 disc cap burned out I have replaced these. Now amp will put out watts with switch in grid position but when I switch to HV it will not make any. The HV position is...

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Heathkit SB-200 Notes

https://www.nostalgickitscentral.com/heath/mods/mod-sb20x-to-10-meters.txt

****If this mod was not done previously (above) the parts for 10m conversion must be obtain and installed.

Heathkit sb-200 refurbishment

OK one more thing...Soft key module is also recommended as your foot switch to key amp can have 120v across the contacts...I don't recommend barefooted operation!:rolleyes::LOL: All the Best Gary

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Heathkit Information

Pictures schematics and other information on electronic kits like Heathkit - EICO - Allied Radio and others.

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Heathkit SB-220 & SB-221 | Product categories | Harbach Electronics, LLC

harbachelectronics.com

SK-220 Soft-Key Keying Interface | Harbach Electronics, LLC

harbachelectronics.com

(The SK-220 safely acts as an amplifier interface to your modern transceiver to the Heathkit SB-220 or SB-221. This unit is mounted inside the amplifier and transforms the 120VDC key (relay) closure circuit to approximately 0.7VDC at 1.5mA. Without it you run the risk of severely damaging the keying circuit in your transceiver.)
GL
All the Best
Gary