Heathkit GR-295

[old_tv_nut]

Originally Posted by DavGoodlin

I wonder whose circuits Heathkit modified? Did they get to cherry-pick the best of each like American Motors* did in thier cars?

*torqueflite trans, rochester carbs, ford electrics

Don't know about most of Heath's sets. IIRC, the transistorized rectangular color set I built in 1975 used RCA's SCR horizontal output. The IF was a unique Heath design, kind of an LC version of a surface-wave IF, completely pre-adjusted and potted as an unadjustable single filter block. Not sure if the remote control section was their design - used multiple parallel tuned circuits driving a bunch of transistors with all the emitters tied together, so they sort of voted on which frequency had the strongest signal. This discriminated against wide band noise, but some metallic objects could produce a pure enough tone to turn the set on.

[Tim]

I built a GR-295 with the remote option in 1969 and used it until 1984 when I got a Sony Profeel. The set is long gone but I still have the construction manual. If you want it for postage costs, shoot me a PM. I may also have the remote.

[centralradio]

Wow the color looks great.

My late sisters boyfriend build one of these sets and lasted up the 90's.He had fun building it and learned alot from it.To bad he junked it about 8 years ago.