Preamp advice needed

Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

Okay, I have a Roberts tube reel-to-reel stereo recorder and player. I stripped out the amp with the intent of making a guitar pre-amp/overdrive out of it. It has pre-out jacks. I got this crazy idea that since it didn't have enough gain to suit me, being it only uses two 12AT7's, one per channel, that I could plug guitar into mic#1, left channel, connect left pre out to Mic.#2 right channel, then run pre-out right into guitar amp and get tons of gain as well as using both channels. Now this works just great, as long as I don't turn channel one up too much, but my question is this, am I hurting the amp? Is this gonna fry my tubes in a hurry? Should I maybe put a resister between pre-out and mic. in? Any advice much appreciated as I'm new at tube circuitry.
R.W.R.

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Topic - Preamp advice needed - RonRon 19:37:07 05/13/21 (2)

RE: Preamp advice needed - Triode_Kingdom 19:46:36 05/13/21 (1)

RE: Preamp advice needed - RonRon 21:02:39 05/13/21 (0)

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