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Louie, Technician
Category: Consumer Electronics
Satisfied Customers: 12580
Experience:  25+ yrs. experience in the field and 5+ yrs. online, down to component level.
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I am the proud owner of a Bugera vintage 5. I have had it

Customer Question

I am the proud owner of a Bugera vintage 5. I have had it about 2 1/2 years.
My question is, can I get a schematic with reference points on where my amp
tech can tie into the circuit board to install an effects loop? I hope you can help!
Thank you, James
Submitted: 1 year ago.
Category: Consumer Electronics
Expert:  Pete replied 1 year ago.

Hi James,

Yes, the Vintage 5 schematics are available from:

Customer: replied 1 year ago.
Hi Pete,
I will not see my amp guy until Tues, in preparation for the adding of the effects loop, can you locate the points of connection on the schematic where the effect loops would be tied in? Thank you, James
Customer: replied 1 year ago.
Thanks for the Schematic, can you locate the points on the schematic where my tech would tie in for adding
of the effects loop? Thank you, James
Expert:  Pete replied 1 year ago.

Sorry, I haven't had time to look through the schematics yet - I will see if another expert can assist you with this in the meantime.


Customer: replied 1 year ago.
Thank you Peter
Expert:  Louie replied 1 year ago.

Hi James and welcome to JustAnswer,

Thank you for the question and your patience. Should you still need assistance for information purposes only...

Initially, the prescribed approach is to add another 12AX7 pre-amp/driver to compensate insertion loss with a little gain. A possible workaround to consider/try (if have not been done) would be:

  • • remove R14 and in its place, connect the wires for the FX LOOP SEND & RETURN basic mod;
  • • depending on the circuitry of the FX LOOP, it may be necessary to also install 2 coupling capacitors 47nF;
  • and depending on the performance, it may also require additional resistors.