Motown Direct Amplifier-inspired Preamp?

[DaveP]

The first trace looks better than the second I think?
best
DaveP

 

[map2112]

Unless we hear from CJ otherwise, this is the final schematic:-

best
DaveP

The closed circuit 1/4” output jack will effectively short out the secondary of the output transformer if nothing is plugged into it (if wired as shown).

Perhaps you intended to have pin 2 of the XLR connected to the switched connection and not pin 3?

Mark

 

[dai h.]

I think that is a stereo jack (tip and sleeve--ring not shown) and not a switched mono jack.

 

[MidnightArrakis]

I think that is a stereo jack (tip and sleeve--ring not shown) and not a switched mono jack.

Unless the schematic is "properly" drawn out to show what the designer's actual intent is, you can only -- surmise -- what the current schematic is actually showing. DaveP will either need to update his schematic to electrically show what his intent really is or, he will just need to offer an explanation of what his current schematic is actually conveying. But.....I also get your point as well!!!

/

 

[DaveP]

I'm glad someone is looking at the detail, thanks 2112! I will correct that in the next version.
best
DaveP

 

[DaveP]

We are now up to mk9 and getting better all the time, thanks to all contributors.

best
DaveP