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Old 9th Sep 2019, 3:08 pm   #7
cathoderay57
Heptode
 
Join Date: Oct 2017
Location: Bristol, UK.
Posts: 581
Default Re: Philips 170A vs Mullard MAS281/15

The electronics was relatively straightforward, just a matter of replacing the usual paper and electrolytic capacitors and rotted rubber wire, and fitting a new magic eye and associated anode load resistors that had gone very high. The volume control shaft also rotated through 360 degrees but I had a scrap one and manage to dismantle it and replace the shaft, as on the original the metal bracket that moves the pot wiper had sheared off the inner end of the shaft. Next I'll be installing the chassis so just hoping everything lines up.
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