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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Bullet VM30 combo, GDR from 1990
But looks more 1970s .
Anyone familiar with strange transistor. capacitor and these IC markings such as "X2 080" ,"X8 761" ,"TL 761" (not opto) ,"X8 082" ,"X6 081" ,"X6 082" , V4007D (not CMOS 4000) -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
#2
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Bullet VM30 combo, GDR from 1990
On Sun, 13 Jul 2008 22:01:59 +0100, "N_Cook" wrote: Anyone familiar with strange transistor. capacitor and these IC markings such as "X2 080" ,"X8 761" ,"TL 761" (not opto) ,"X8 082" ,"X6 081" ,"X6 082" , V4007D (not CMOS 4000) Found in an old VEB Kombinat Mikroelektronik databook: B080D = TL080 B081D = TL081 B082D = TL082 B761D = TAA761 V4007D = CD4007UBE Best regards Piotr |
#3
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Bullet VM30 combo, GDR from 1990
Piotr Piatek wrote in message
... On Sun, 13 Jul 2008 22:01:59 +0100, "N_Cook" wrote: Anyone familiar with strange transistor. capacitor and these IC markings such as "X2 080" ,"X8 761" ,"TL 761" (not opto) ,"X8 082" ,"X6 081" ,"X6 082" , V4007D (not CMOS 4000) Found in an old VEB Kombinat Mikroelektronik databook: B080D = TL080 B081D = TL081 B082D = TL082 B761D = TAA761 V4007D = CD4007UBE Best regards Piotr Thanks for that, I'd only assumed there was no use for 6 off CMOS inverter packs, assuming they were more likely to be quad opamp packs. Do you know why there are all thes +digit numbers on the ICs transistors and electrolytics ? the 2 main TO3 output Tesla devices are marked KD607 but also X69321 -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
#4
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Bullet VM30 combo, GDR from 1990
thes +digit
should read these X + digit |
#5
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Bullet VM30 combo, GDR from 1990
On Mon, 14 Jul 2008 10:28:07 +0100, "N_Cook" wrote: Do you know why there are all thes +digit numbers on the ICs transistors and electrolytics ? the 2 main TO3 output Tesla devices are marked KD607 but also X69321 Sorry, I don't know. Perhaps they are date codes. Piotr |
#6
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Bullet VM30 combo, GDR from 1990
N_Cook wrote:
Do you know why there are all thes +digit numbers on the ICs transistors and electrolytics ? No idea about the electrolytics. On the semiconductors, it's the marking for production month and year (but I don't have the code handy). the 2 main TO3 output Tesla devices are marked KD607 but also X69321 The KD607 is a Czech npn power transistor, 10 A, 80 V, 70 W, designed for AF power amps. -- cheers, J"org .-.-. --... ...-- -.. . DL8DTL http://www.sax.de/~joerg/ NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-) |
#7
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Bullet VM30 combo, GDR from 1990
Joerg Wunsch wrote in message
... N_Cook wrote: Do you know why there are all thes +digit numbers on the ICs transistors and electrolytics ? No idea about the electrolytics. On the semiconductors, it's the marking for production month and year (but I don't have the code handy). the 2 main TO3 output Tesla devices are marked KD607 but also X69321 The KD607 is a Czech npn power transistor, 10 A, 80 V, 70 W, designed for AF power amps. -- cheers, J"org .-.-. --... ...-- -.. . DL8DTL http://www.sax.de/~joerg/ NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-) I only have one German data book , ECA from 1987 and it does not list the final uncertainty. An E-line size or varicap type package of a diode marked 32 VV or 32 YV, 32 volt zener ? -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
#8
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Bullet VM30 combo, GDR from 1990
N_Cook wrote:
An E-line size or varicap type package of a diode marked 32 VV or 32 YV, 32 volt zener ? Any chance to take a photo? My guess is it's an SAY32 which is a simple silicon small-signal diode. -- cheers, J"org .-.-. --... ...-- -.. . DL8DTL http://www.sax.de/~joerg/ NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-) |
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