Title: Harvey Wells TBS50D Post by: G4OJY on September 19, 2021, 12:06:28 PM I've just imported a Harvey Wells TBS50D transmitter from the US. The manual shows that the correct PA tube is an 807, whereas mine has a 6146 fitted. Does anyone know if this was an official modification or not, has it featured in any old radio magazines in the US?
Thanks Andy G4OJY Title: Re: Harvey Wells TBS50D Post by: W3GMS on September 19, 2021, 01:57:13 PM Hi Andy,
I have never heard that Harvey Wells produced any of the TBS series with a 6146 final tube. It is more likely that someone who previously owned the rig did the conversion. 73, Joe-GMS Title: Re: Harvey Wells TBS50D Post by: MikeKE0ZUinkcmo on September 19, 2021, 11:36:53 PM Agreed, I've never seen one with anything other than an 807 for the PA.
Title: Re: Harvey Wells TBS50D Post by: N3GTE on September 20, 2021, 09:55:44 AM Hi Andy
What you are looking for is this: https://www.swedeart.com/harvey/html/bulletins.html Check out #15. Rumor has it that it doesn't make much of a difference between the 807 or 6146. Cheers Terry N3GTE Title: Re: Harvey Wells TBS50D Post by: Opcom on September 20, 2021, 10:50:02 AM It almost seems the 6146 was made to honor the 807's ubiquitous usefulness as form factors and vacuum tube technology changed.
Title: Re: Harvey Wells TBS50D Post by: N3GTE on September 22, 2021, 10:14:31 AM It's also mentioned in the Swap and Shop article. https://www.swedeart.com/harvey/html/tbs-50.html
Terry Title: Re: Harvey Wells TBS50D Post by: G4OJY on April 21, 2024, 11:20:53 AM Well after nearly 3 years of being on the back burner, the TBS50 is almost ready to go. I decided to convert it back to an original 807 PA. Does anyone have a good scan of the front panel paper label?
Cheers Andy Title: Re: Harvey Wells TBS50D Post by: ae7db on April 21, 2024, 09:52:12 PM Andy,
Attached is a so-so scan of mine. The card is yellowed and faded, but you can see what it is, so perhaps it will be helpful. You will have to print to the appropriate scale to fit. Best, Dean Title: Re: Harvey Wells TBS50D Post by: G4OJY on April 22, 2024, 10:24:05 AM Thanks Dean I should be able to use that. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
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