Plinius III 80 watt p/c class AB Amplifier - Page 7 - diyAudio
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Old 17th December 2012, 09:21 AM   #61
Butcher is offline Butcher  New Zealand
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mach1 no copy of the preamp just yet....
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Old 11th January 2013, 10:11 AM   #62
Butcher is offline Butcher  New Zealand
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Tonight I found the bag containing bits n' pieces off of the Plinius amplifier. I can confirm that inside the amp where two voltage regulators that fed the preamp. They are LM7924 and LM7824 so that's +24 volts and -24 volts respectively.

Tony.
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Old 11th January 2013, 10:27 AM   #63
mach1 is offline mach1  Australia
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Thanks Tony, I was sure the previous owner mentioned 24v.
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Old 11th January 2013, 10:14 PM   #64
Butcher is offline Butcher  New Zealand
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Yes that is right! Just posted the info so it was 100% factual! Of course sometimes manufacturers change specs during production (usually to cut costs down no less!)

Thanks mach1, Tony.
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Old 25th January 2013, 09:20 AM   #65
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Just recieved a plinius 2b pre that has been rather badly 'fixed', mainly re-soldering some dodgy PCB tracks. Anyway.... in the process things would appear to have gone badly wrong. Anybody have a schemtic for this otherwise very tidy preamp so I can bring her back from the dead? Ta in advance.
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Old 31st January 2013, 06:05 AM   #66
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ooops, anyone with scematic for Plinius IIb pre will need this brasses@xtra.co.nz to send it to. Ta much
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Old 26th March 2013, 10:58 AM   #67
Butcher is offline Butcher  New Zealand
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RSK email sent. Cant recall if I sent schematic already!!

Tony
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Old 26th March 2013, 11:52 AM   #68
RSK is online now RSK  Malaysia
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Quote:
Originally Posted by Butcher View Post
RSK email sent. Cant recall if I sent schematic already!!

Tony
Hi Tony,
Thank you for your kind mail. I got the schematic.

Cheers,
Raj
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Old 30th June 2013, 09:43 AM   #69
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Hi Tony, I am a Avionics engineer at Air NZ and fix amps for my mates I do love the old stuff as we can relate to it. The Plinius IIc and Plinius VIIb combination from 1984 landed with me. Please if jou have a schematic for the VIIb power amp. Email tierventer@xtra.co.nz
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Old 5th July 2013, 09:54 PM   #70
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Angry Plinius VIIc

Just answering my own question, I confirm that the Schematic for the III is good for the VIIIc. I traced it out only diff is that the power supply feed tru the emitter resistors to the rails. Will post the Schematic for others to use plus pictures. Keep a lookout! Also the drivers and output transistors are the Toshiba ones that is now obsolete 2SA1302 and 2SC3281 Be warned there is some fake ones out there!
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