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Old 26th December 2006, 02:50 PM   #1
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Default DIY headphone amps - Gilmore?


Getting back into Electronics/Audio and on designing the PCB for the Gilmore Dynamic Headphone Amplifier.

A few questions! Ive noticed on the Gilmore Website for the Kit/Ready Made units the PCBs have 4 variable blue presets - any ideas what this is for compared to the circuit posted here

Also any ideas what the new equivanlents will be for 2SC1815/2SA1015/2SK389/2SJ109 transistors?

Regards and thanks in advance.


P.S Anyone other newer designs anyone know/recommend?
Head Amps:Millet Max / Kumisa CKIII |Speakers:Rega RS5 |Amp:Roksan Kandy |CD:Roksan Kandy |TT: RegaP2
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Old 26th December 2006, 05:33 PM   #2
Nisbeth is offline Nisbeth  Denmark
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The trimmers are for DC-offset adjustment. If you read the assembly instructions for the Rev. C board from everything should be much clearer

As for the transistors, the SA1015/SC1815 should be obtainable and I am not aware of any replacements for these in the Gilmore amps. The replacements for the FETs are matched pairs of 2SK170/2SJ74s.

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