On Sep 29, 2022, at 1:05 PM, Brian Harrison <[email protected]> wrote:All,I “think" the civilian version of this xmtr was very similar to the Radiomarine ET-8023 or-A (but not the -DI which was part of the 4U console)The ET-8023 is mentioned in this terrific RCA pdf - http://www.skywaves.ar88.net/Docs/RCA_Russian_Catalog.pdfHigh Frequency Transmitter, five tubes, 200 watts output, 2000 - 24,000 kcs, A-1 and A-2 emissions, Model ET-8023Can anyone confirm?Tnx agn,briankn4rOn Sep 28, 2022, at 11:48 PM, Brian Harrison <[email protected]> wrote:Hi all,I’m looking for TM 11-852 electronic or paperor any info on T-397/SRT-4A transmitter