Re: Tokyo Hy-Power HF Lin Amp HL100B
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Hi peter, ? Yes, you’re correct. ? I believe that the NO contact from relay 1 should be going to the wiper contact of relay 2, not the NO contact. ? 73….Eric VK2VE. ?
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From: [email protected] <[email protected]> On Behalf Of The Notorious Tre`
Sent: Thursday, May 16, 2024 7:21 AM
To: [email protected]
Subject: Re: [ft817] Tokyo Hy-Power HF Lin Amp HL100B? ? There seems to be an error in the HL100Bdx schematic that I am looking at.? RL2, the 5W relay, doesn't seem to do anything regardless of its state.? There appears to be a connection missing on the diagram. I seems that the 5W position should simply bypass the attenuator.? Is there a similar attenuation circuit in the B version that cold be hardwired bypassed? On Wed, May 15, 2024 at 12:35 PM, Peter Burnett via Is anyone using this amp with an FT817/8? Is it possible to modify the drive input to obtain 100watts output for 5watts in. With the newer bdx version their is a switch to select 5 or 10 watts drive for 100watts out so I thought the b model might have the same circuitry but just no switch.?
Where can I obtain a copy of the manual and circuit diagram, pdf or paper.? I have only been able to find details on the bdx version.
Thanks for any comments/info ?
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Peter Burnett G4BLL
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