Archive for August 18th, 2024

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Sunday, August 18th, 2024
Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

Vintage Dynaco Dynakit ST-70 Stereo Vacuum Tube Amplifier Restored Audiophile

As always, these amps are wonderful but too bad I’m limited in space so I can’t keep all the gear I find! See photos for physical condition of the outside and inside of the amp. FYI, the mono switch is noisy if engaged, and the power switch can cause a small pop if not flipped quickly. They both will eventually need to be replaced but I don’t have the time. Restoration included: HIGH quality F&T electrolytic caps; new coupling caps for the driver board; replaced the selenium rectifier with a diode, and added diodes prior to the rectifier tube for added power supply stability. Swapped out the 7199s with a pair of 6UA8s from Tube Depot back in June. Probably have 10 hours on them. Tubes are not guaranteed as I don’t have a tube tester. Tubes included are 4 mixed EL-34s, and 2 6UA8s, Tung Sol GZ34. Here’s video of the actual unit in my system. Photos demonstrate the physical condition. I’m in Palm Springs, CA 92262.

Muzak 920d Vintage Tube Amplifier

Sunday, August 18th, 2024
Muzak 920d Vintage Tube Amplifier

Muzak 920d Vintage Tube Amplifier

Muzak 920d Vintage Tube Amplifier

Muzak 920d Vintage Tube Amplifier

Muzak 920d Vintage Tube Amplifier

Muzak 920d Vintage Tube Amplifier

Muzak 920d Vintage Tube Amplifier

Muzak 920d Vintage Tube Amplifier

MUZAK 920D VINTAGE TUBE AMPLIFIER. FOR REFERENCE – SEE THE PICTURES. WITH TUBES AND POWER CORD. IN VINTAGE CONDITION WITH SCRATCHES, SPOTS AND SIGNS OF USE. PLEASE, SEE OUR OTHER ITEMS! GOOD LUCK AND THANK YOU FOR LOOKING!