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Old 11th April 2004, 04:58 PM   #1
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Join Date: Jan 2003
Location: Newtonhill Aberdeenshire
Default JLH Hphone amp transistor replacements

Hi All
Looking for low nose high gain transistor replacements for THE JLH HEADPHONE AMP Found on geoff moss.s site Plus PCB files for circuit 1
2N4922
BC182
BC212

http://www.tcaas.btinternet.co.uk/jlhphones.htm

Thanks
Colin
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Old 11th April 2004, 05:15 PM   #2
Geoff is offline Geoff  United Kingdom
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Hi Colin

Sorry, can't help you with the pcb layout, but alternative transistors could be:

For the BC182/BC 212 - BC550/BC560 or 2SA970/2SC2240 or 2SA872/2SC1775

For the 2N4922 - BD139 or 2SC3421

Note, these alternatives are not necessarily pin compatible with the originals.

Geoff
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