G7 schematic and parts list descrepancy

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Freddy G

Well-known member
Joined
Jun 4, 2004
Messages
463
Location
Canada
Hi All,
Can anyone who has built a G7 mic help me? Jakob?
I'm looking at Jakob's schematic on his website and it shows two 2u2 capacitors, however in the PCB layout I can't find one of the 2u2 caps! (The one that's shown in the schematic going to ground.)
Also in the schematic I see a 100uf/35v electrolytic in parallel with a 1u/63v non polarized cap but....the PCB layout seems to show only a 220uf/25v cap here.
Thanks in advance,
Freddy
 

jrmintz

Well-known member
Joined
Jun 3, 2004
Messages
998
Location
NY
Hi Freddy,

On the parts overlay of the mic board itself there's a 2.2uf and a 1uf/160V cap. I think the 1uf is what's the other 2.2 on the schematic. IIRC the other 1uf/63V cap, the 100uf cap, and the trimpot were optional, weren't they?

Good luck
 

zebra50

Well-known member
Joined
Jun 4, 2004
Messages
2,925
Location
York, UK
And if you buy good quality audio grade caps for the 220uF/35V then you won't need the 1uF poly in parallel.
 

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