SB-101 LMO Tube

Kenneth G. Gordon kgordon2006 at VERIZON.NET
Sun May 21 23:59:08 EDT 2006


> I do not have a 6ea8 tube and would like to know if there is a
> substitute for it. Thanks in advance for any advice.

The 6EA8 is a dual-section mixer type tube, very similar to the 6U8. 
The envelope contains a triode and a sharp-cutoff pentode. Neither 
tube was EVER originally used in any of the Heathkit SB/HW 
transceivers as an LMO or VFO tube.

Furthermore, the 6EA8 or 6U8 is a 9 pin miniature tube, while the LMO 
tube is a 7 pin miniature. As I remember it, the LMO tube in the SB-101 
is a 6CB6, but I my memory may be off.

If your LMO has a 6EA8 in it, someone must have changed the socket 
and rewired it for some reason.

Ken W7EKB

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