Hi
RCA branded Melcor 1731 opamp + preamp card for sale. Pulled out of RCA BC100 channel mic preamp and converted to work as Melcor AM 27 ( not a big deal, just one trace cut on the preamp board , trim pin trace not needed on theAM27 preamp, and changed a couple of parts as per AML 27 schematic.
Tested OK. Recaped. This preamp is from the early 1970s.
RCA later on used rebranded API2520 as their opamps of choice.
Search on the forum for the posts about this RCA-Melcor-API branding. There are some posts from the member emrr, maybe others as well.
I have only one left.
...€ registered airmail and paypal included in the price.
Schematics in the GroupDIY technical section.
RCA branded Melcor 1731 opamp + preamp card for sale. Pulled out of RCA BC100 channel mic preamp and converted to work as Melcor AM 27 ( not a big deal, just one trace cut on the preamp board , trim pin trace not needed on theAM27 preamp, and changed a couple of parts as per AML 27 schematic.
Tested OK. Recaped. This preamp is from the early 1970s.
RCA later on used rebranded API2520 as their opamps of choice.
Search on the forum for the posts about this RCA-Melcor-API branding. There are some posts from the member emrr, maybe others as well.
I have only one left.
...€ registered airmail and paypal included in the price.
Schematics in the GroupDIY technical section.
