[Heathkit] UPDATE: Keying Voltages Information Request

Ken Miller K6CTW k6ctw at earthlink.net
Fri Apr 12 13:05:17 EDT 2013


Sorry, for the DX-35, it is also across pins 1 and 8 of the accessory socket

73 - Ken

>Subject: Keying Voltages Information Request
>
>All,
>
>I am putting together an interface to a DDS-based VFO (WA1FFL) and want to be able to key it from a number of Heathkit transmitters.  However, to do that I need to know what the open circuit voltage is across the key (or accessory socket equivalent connection) is.  I already have data from my DX-60 and a HW-16.  I'm looking for voltages for the following rigs:
>
>DX-20 across the key
>DX-35 across the key
>DX-40 between pins 1 (ground) and 8 of the accessory socket
>
>Thanks in advance for anyone who can measure the voltages specified and supply me with that information.
>
>73 - Ken Miller, K6CTW



More information about the Heathkit mailing list