Lundahl Output Transformer PCB
These pcb's will simply solder onto the transformer so that all the transformers' pins are 'extended' to make soldering and wriring easier.
Where applicable, jumper links need to be installed to configure the secondery winding for 4, 8 or 16 OHM speaker impedance.

If you order these pcb's with your Power Transformer order, there will be no additional shipping charge. To order, please send us an e-mail at

These pcb's are suitable for the LL1620,1623,1627 & 9202 OPT's, for 4 and 8 OHM ONLY! NOT suitable for 16 OHM speaker impedance.
The the primary pcb has been designed so that the speaker impedance can be chosen between 4 and 8 OHM using the small wire terminal and jumper links, see photo on left, OR, the 4 or 8 OHM impedance can be permanently set by soldering the appropriate jumper links onto the pcb instead of using the small wire terminal. These pcb's can also be used with the 1638 housing due to the very low profile of the wire terminal.
Note, the primaries of the LL1620/27 and LL1623/9202 are different, so you'll need to let us know which model OPT you have!
You will get full documentation with your pcb order explaining how the wire terminal etc. works.

Order code PCB-LL1620/23/27/9202, price for a pair is $22.00 which includes the small wire terminal and a length of pure copper wire, plus $10.50 shipping to the lower 48.