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Commander HF-2500 meter lamps and HV PS

 

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The solution is simple if you want the colours to change between Tx and Rx. Install another small SPDT relay in parallel with the keying relay and wire each strip through the contacts.

73, Alek VK6APK.

On 19/04/2025 9:03 am, KG2RG via groups.io wrote:

So I installed 2 LED strips that draw 66mA each. I tried to utilize that standby DPDT but the one set of poles is shot. Anyway, I’m just running both strips, red and green. I may drop the voltage to the strips because they are so bright, but good to be out of the dark on those meters.?
 

Well, my goal was to just have the meters red in standby and green when ?out of standby but the 1 set of the poles are bad on the 2PDT standby switch.?

I don’t want colors changing between TX and RX but that could potentially work but you would need to pull out the entire RF deck to access the relay. The other issue is the limited current on the 12V 1amp supply for the relay and meter lights.
?
Anyway, I may try to find a replacement switch that matches the one in there now.
?Thank you for your info, it’s definitely possible.
on my SB-220, I have one of the meters go dark when in standby. The standby on the SB-220 is a mod and it’s nice to have the indication of the am in standby or not from the lights in the meter. ?
 

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No. Just remove the rear panel screws and fold the panel down to get to the relay/s. There's also the relay on the control board.

Cheers, Alek.

On 19/04/2025 1:51 pm, KG2RG via groups.io wrote:

Well, my goal was to just have the meters red in standby and green when ?out of standby but the 1 set of the poles are bad on the 2PDT standby switch.?

I don’t want colors changing between TX and RX but that could potentially work but you would need to pull out the entire RF deck to access the relay. The other issue is the limited current on the 12V 1amp supply for the relay and meter lights.
?
Anyway, I may try to find a replacement switch that matches the one in there now.
?Thank you for your info, it’s definitely possible.
on my SB-220, I have one of the meters go dark when in standby. The standby on the SB-220 is a mod and it’s nice to have the indication of the am in standby or not from the lights in the meter. ?
 

Hmmm, the relay is right there??

I do want to clean the relay. I cut strips of paper, saturate them with DeoxIT, and clean the tint acts on the relays. They are almost always dirty.?
 

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Hmmm alright. That doesn't look like a Commander HF-2500 with 3CX800A7s. ?

On 20/04/2025 6:10 am, KG2RG via groups.io wrote:

Hmmm, the relay is right there??

I do want to clean the relay. I cut strips of paper, saturate them with DeoxIT, and clean the tint acts on the relays. They are almost always dirty.?
 

That’s a SB-1000. Just showing the dirt on the strip that I pulled off the relay.?

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