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8th Aug 2020, 6:42 am
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#1 |
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Diode
Join Date: Apr 2020
Location: Newcastle upon Tyne, Tyne and Wear, UK.
Posts: 5
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Hacker RP10
Hi. Can you tell me where the 6 pins from the amp board go to I'm attempting to use the amp from an RP10 to repair an RP 38A. I know the position on the RP38 (they're printed on the board) but on the RP10 Has only numbers 1 to 6, I can’t find a schematic + still being a bit of a novice probably won’t be able to work it out
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8th Aug 2020, 7:46 am
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#2 |
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Dekatron
Join Date: Aug 2013
Location: Wigan, Greater Manchester, UK.
Posts: 9,431
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Re: Hacker RP10
Service information for one of the versions, I think there were a couple.
https://www.service-data.com/product...26/3489/m12626
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Frank |
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8th Aug 2020, 9:32 am
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#3 |
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Dekatron
Join Date: Dec 2004
Location: East Yorkshire, UK.
Posts: 3,985
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Re: Hacker RP10
It looks like the above post covers model numbers up to 38,000 with the various modifications. Looking at the circuit I can not see any mention of the pin numbers on the circuit, or where the amp board starts. I hope you can manage to work it out with the help of the circuit.
John.
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My favourite text message "I'll be there in five minutes, if not read again" |
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8th Aug 2020, 6:17 pm
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#4 |
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Dekatron
Join Date: Jul 2007
Location: Evesham, Worcestershire, UK.
Posts: 4,244
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Re: Hacker RP10
It won't work - they're completely different beasts. Sorry!
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8th Aug 2020, 6:51 pm
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#5 |
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Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,535
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Re: Hacker RP10
As Mark says, they're completely different- the RP10 has one overall PCB but the RP38A has a separate amplifier module not even the same as the one in the RP38.
If you've physically got the RP38A af amp module, it's not impossible to do component level repairs even going as far as reworking it for silicon output transistors but this will depend on your (or even someone else's) ability (and/or enthusiasm) for the job!
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....__________ ....|____||__|__\_____ .=.| _---\__|__|_---_|. .........O..Chris....O |
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8th Aug 2020, 7:20 pm
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#6 |
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Moderator
Join Date: Jun 2003
Location: Oxford, UK
Posts: 27,934
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Re: Hacker RP10
If the amp is beyond saving, build a little amp with an LM386 and use that. You can even buy ready built modules for a pound or two from Chinese eBay sellers.
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8th Aug 2020, 7:25 pm
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#7 |
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Dekatron
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
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Re: Hacker RP10
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8th Aug 2020, 7:34 pm
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#8 |
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Dekatron
Join Date: Jul 2007
Location: Evesham, Worcestershire, UK.
Posts: 4,244
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Re: Hacker RP10
The earlier models had a separate amp; the later ones used a single PCB. The change happened at serial number 20,001.
It's been a while since I've looked at an early RP10, but they have 7 pins IIRC. The RP38A is 5 (treble, bass, +18V, input and 0V). The RP10 doesn't have bass and treble controls, so right there is a major difference. The RP10 amplifier has a +/-9V supply rather than the single 18V of the Hunter. The RP10 speaker is 30 ohms; the Hunter is 15. You get the idea... As has been said, Hunter amps are eminently fixable if you have it (and can be found if you haven't). It's worth the effort, as the sound quality which the Hunter is so famous for comes from the combination of the speaker and the equalisation the amplifier provides. |
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9th Aug 2020, 3:03 pm
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#9 | |
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Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,535
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Re: Hacker RP10
Quote:
Hi Mark, did you get a chance to do this? Can't find anything in Hackerradiogroup...
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....__________ ....|____||__|__\_____ .=.| _---\__|__|_---_|. .........O..Chris....O |
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9th Aug 2020, 10:25 pm
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#10 |
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Dekatron
Join Date: Jul 2007
Location: Evesham, Worcestershire, UK.
Posts: 4,244
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Re: Hacker RP10
Was that really 4 years ago? I'm sorry, but no, I still haven't done that... Thanks for the gentle reminder
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