well i have 3 GE radios here with 3 Little Sinclair Duplexer inside them,they were used as a phone patch link,
they are : CT56AAS66A with their channelle elements at 152.195 mhz RX and 157.495 TX. the Duplexer are "RES-LOK Model SD-220 Serial:Q3242-43 i also have 2 Zetron 36B Phone link base with OEM manual you can send me an email at [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> 73/s Gervais,Ve2ckn.
