Bottlehead Crack - Page 19

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()Cuta6”(150mm)pieceoftwistedpair.Strip
bothwiresback1/4”(6mm)atoneend.
Attheotherendunwind2”(50mm)ofthetwist.
Trim off 1-1/2”(37mm)oftheblackwire.Strip
theblackwireback1/4”(6mm).Striptheredwire
back3/4”(19mm).
( ) At the first end attach and solder the red wire
to B8U, attach and solder the black wire to B7U.
At the uneven end route the wires under the
terminal strip behind the nine pin socket. Attach
and solder the black wire to A9. Insert the red
wire end through A5 and then A4, and solder
both A4 and A5.
()Cuta2”(50mm)pieceof
black wire, strip both ends back
1/4”(6mm).Attachandsolder
one end to power transformer
terminal 4. Attach and solder the
other end to terminal 22L.
REVISION 5/6/10:
Makingthiswire3”longand
connecting it to Terminal 14U
instead of terminal 22L may
yield more quiet operation.