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| Vintage Radio (domestic) Domestic vintage radio (wireless) receivers only. |
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26th Jan 2018, 7:40 pm
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#1 |
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Heptode
Join Date: Jan 2016
Location: Nottinghamshire, UK.
Posts: 676
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Hacker RP30 TR1
Hi has anyone have a photo of underneath the main board Of a Hacker TR30. The red wire close to the green one was attached via a very dry joint to the collector of TR1 but has the set seems to have been extensively 'messed' with. I am probably wrong but I am not 100% convinced it goes there? Confirmation would be much appreciated.
Regards Kev |
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26th Jan 2018, 10:25 pm
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#2 |
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Heptode
Join Date: Mar 2016
Location: Essex, UK.
Posts: 602
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Re: Hacker RP30 TR1
The collector shoud be going via the coil to the negative supply rail.
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Geoff |
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27th Jan 2018, 12:13 am
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#3 |
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Heptode
Join Date: Jan 2016
Location: Nottinghamshire, UK.
Posts: 676
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Re: Hacker RP30 TR1
Thanks Geoff
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27th Jan 2018, 12:22 am
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#4 |
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Heptode
Join Date: Mar 2016
Location: Essex, UK.
Posts: 602
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Re: Hacker RP30 TR1
That includes the first I.F. and collector load resistor though I don't have the schematic for it.
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Geoff |
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27th Jan 2018, 12:42 pm
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#5 |
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Dekatron
Join Date: Jul 2007
Location: Evesham, Worcestershire, UK.
Posts: 4,244
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Re: Hacker RP30 TR1
The red wire is +HT, which should be labelled on the silk-screen, but see the pictures if in doubt...
Hope that helps, Mark 
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27th Jan 2018, 6:22 pm
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#6 |
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Heptode
Join Date: Jan 2016
Location: Nottinghamshire, UK.
Posts: 676
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Re: Hacker RP30 TR1
That's brilliant Mark thank you very much.
Regards Kev |
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