Thanks to everyone for the comments. Hue, I guess I'll find out about the resistors if and when I ever get around to building the xmtr! I'm thinking old technology, old tubes and old designs should work for old me (I'm 84 next month). Am thinking about using my BC-221 as the VFO (amplified a bit) and feeding that into a 6AG7 buffer and an 807 final amp. Nice little 40 watt xmtr. Maybe two 807's...who knows; I have a half dozen of them. Or 6146B's. But I have too many other projects to finish first. First step is to fix the BC-221 which suddenly stopped working; I think it's just a failure of the spring-loaded output wiper that feeds the the antenna connection.

73,

Frank

On Sun, Apr 20, 2025 at 11:16 PM millerke6f--- via ARC5 <arc5@mailman.qth.net> wrote:

Here is the one used in the HEATHKIT SB-10 SSB adaptor for what it's worth. I've duplicated this
guy more than once over the years and stuff them in old metal can octal tube cases. Work like champs
and modern .1 percent resistors at pennies each and NPO smt caps work well also.

Fud fer thoat

Bob KE6F

On Sunday, April 20, 2025 at 07:29:50 PM PDT, Hubert Miller <kargo_cult@msn.com> wrote:

I have a Lakeshore Bandmaster II-B, the one with the VFO. I don't know whether its size + weight and the not sane number of my other projects will dictate i sell it. I also have an audio phase shift network in a little package like a metal tube. I don't remember the maker right now - this is what happens apparently when the % of memory space used approaches the capacity - but you will know it anyway. I was wondering about the longterm stsbility of the 1% resistors in the audio phase shift networks. Knowing about old - style carbon resistors, i am not optimistic.

-Hue Miller

Sent from my Galaxy

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