How to make one good Dynaco PAS Home stereo Preamp from Two bad ones keep vintage electronics alive

ebay specials. Offered as operating, sure. Owner thought he was out. D-Lab found a way to save one preamp. I specialize in Dynaco repair. If you have a preamp or amplifier that is in need, contact me. Thank you all for your support of my shop. See: d-labelectronics.com and https://www.patreon.com/dlab_electron...