[ARC5] Transistorized LM

[Tom Lee]

Hi Hue,

After a little googling with variant spellings of 'tubestor', I found 
this: https://www.qsl.net/kh6grt/page4/tubesters/tubesters.htm. Could 
this be what you were thinking of?

That site not only has schematics for tubesters, it's got a wealth of 
FETRON info and related articles. Even if it turns out not to be the 
tubestors you remember, reading the material is a great way to burn the 
long weekend. ;)

-- Cheers,
Tom

On 8/31/2025 2:34 PM, Hubert Miller wrote:
> I just did a quick Google search on 'tubestors' and lo, there does not 
> seem to be any info jumping right out at you. Maybe later i should try 
> another engine. I was curious how they handled dropping the B+ down 
> from tube range to FET range. I have some lit "somewhere" but only 
> like advertising, nothing revelatory about the actual innards circuit. 
> These didn't seem to be on the market very long  did they ? In Frank 
> Zappa's words, they were gone like the elephant's footprints in the ocean.
> -Hue Miller