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Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players Open-reel tape recorders, cassette recorders, 8-track players etc.

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Old 29th May 2019, 1:30 am   #1
whiskas
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Default Marconiphone 4247 reel to reel

HI all,

I've just fixed a Marconi 4247 4 track reel to reel which had low sound levels.
I thought I'd document the job here.
The problem was that some of the electrolytic capacitors had gone bad - mostly the dreaded Callins, one of which had broken open! I also replaced a few others by Daly and 'SWT' at the same time, just incase they weren't performing well.
I changed them all with better quality Elna/RS branded caps and an axial Philips for the main smoother.
Luckily the belts were all still functioning well, so I left well alone.
Now the sound level is back as it should be, now it's producing nice, clear sound quality, as good or perhaps better than when it was new - as those Callins caps were never any good!
I'll leave some photos of the job before and after, and a photo of the removed caps, in case someone else needs to do a similar job in the future.
Cheers
Rob
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Old 1st Jun 2019, 11:14 am   #2
Chris55000
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Default Re: Marconiphone 4247 reel to reel

Hi!

Is that a two speed or three speed model?

Can anyone tell me if there were Ferguson/HMV/Ultra direct equivalents?

If it's three speed stereo transistorised I'd definitely be interested in buying one as a future project but ebay prices thave been just silly in recent years – can anyone offere other sites or places to look please?

Chris Williams
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It's an enigma, that's what it is! This thing's not fixed because it doesn't want to be fixed!
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Old 1st Jun 2019, 1:04 pm   #3
quiberon
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Default Re: Marconiphone 4247 reel to reel

Ferguson brand would have been "3247"

Based on the drive belt path it is a single speed model.
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Old 2nd Jun 2019, 5:08 pm   #4
ben
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Default Re: Marconiphone 4247 reel to reel

Mono single speed 4 track. Based on Philips EL3558 type mech. There was a 2 speed variant but these are low speed (1 7/8, 3 3/4 ips) units.
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