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Old 15th Feb 2020, 4:39 pm   #1
Malcolm G6ANZ
Malcolm G6ANZ's Avatar
Join Date: Feb 2006
Location: Bristol, UK.
Posts: 644
Default Marconi CR300 PSU

I have been given a tatty CR300 with power supply. It was stored in a garage for many years so is need of a rebuild!
I thought I'd start with the PSU. The receiver came with whet appears to be the original manual however the PSU section is totally different to the actual object.
The manual, all other information on the net shows the PSU as having one fuse and one switch on the front and another switch inside. Mine has two fuses and no internal switch. Also the tappings/links for the various supply voltages are labelled differently. The manual indicates them as numbered links and mine has them as voltage links coupled with letters.
So does anyone have a correct circuit?
I probably wont use the receiver on DC of any voltage as the vibrator is missing, but I will change the caps so in the future DC operation might be possible.

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