cptnCanada
Active Member
Picked up a Marantz Model 8 in absolutely horrible physical condition. Looks like it has been sitting in a unconditioned storage shed for the last 30 years. Lots of surface rust, dented chassis, missing transformer cover, cutoff power cord, missing fuse holder, etc.
Underneath it looks to have never been touched. All original, wiring all straight, no signs of electrical problems. The game plan is to bring this back to be my daily driver. If all goes to plan, and with lots of luck on my side, this ugly duckling should turn into rusty gold.
Here is the list of to-do's
Remove transformers and soak chassis in simple green
Test transformers
Straighten chassis
Replace selenium rectifiers with modern diode equivalents
Replace electrolytic caps in power supply
Measure all carbon comp resistors for drifting
Purchase new tubes
I would really like to keep all the caps in the signal path original. I believe they are mylar good-all and Sprague bumblebee caps. Any comment on if this is a good idea?
Also looking for a transformer cover as this one is completely missing.
I have brought a couple tube amps back to life in the past but I am by no means an expert so you can expect a lot of questions along the way. Will be posting lots of pics as I go so hopefully somebody will be able to use this as a guide in the future as I am finding no decent Marantz 8/8b restore threads anywhere on the internet.
Underneath it looks to have never been touched. All original, wiring all straight, no signs of electrical problems. The game plan is to bring this back to be my daily driver. If all goes to plan, and with lots of luck on my side, this ugly duckling should turn into rusty gold.
Here is the list of to-do's
Remove transformers and soak chassis in simple green
Test transformers
Straighten chassis
Replace selenium rectifiers with modern diode equivalents
Replace electrolytic caps in power supply
Measure all carbon comp resistors for drifting
Purchase new tubes
I would really like to keep all the caps in the signal path original. I believe they are mylar good-all and Sprague bumblebee caps. Any comment on if this is a good idea?
Also looking for a transformer cover as this one is completely missing.
I have brought a couple tube amps back to life in the past but I am by no means an expert so you can expect a lot of questions along the way. Will be posting lots of pics as I go so hopefully somebody will be able to use this as a guide in the future as I am finding no decent Marantz 8/8b restore threads anywhere on the internet.
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