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Categories | Transmitters: Vintage amateur | Heath DX100 Help

Show all reviews of the Heath DX100

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W8JI  Rating: 3/5 Feb 25, 2014 05:08  Send this review to a friend!
OK for its era  Time owned: more than 12 months
The DX100 is OK for its time. I still have a few of them here. It does send CW and has an internal VFO. As others have mentioned, it has CW keying issues that would be unacceptable today. It has two audio coupling capacitors on the plates of the 12AX7 that are too small, making it a bit tinny, but it is simple to change those 510 pF audio coupling caps to .005 or slightly larger parts.

I modified my CW keying with semiconductors to be a sequenced keying with wave shaping, and set the clamp tube carefully, and it cleaned up OK. Took a few hours and cost less than $20 in parts, and now the key is 5 volts!

I've never had a lick of trouble with any 6146 type in any of my rigs, but that's OK. Please save all those nasty rotten unusable 6146B's for me!!!! They won't work for you.  
Product is not in production.
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