On all the HF2500 amps I buy or repair for customers I install strip LEDs above the meters. ?I don’t want to mess again taking the amp apart for meter bulbs. ?The originals are fuse type bulbs. ?Obviously someone changed the originals for these. ?I suggest the LED strip above the meters. ?The amp 12v??is rated 1 amp. ?There’s nowhere near one amp drawn some 100ma of LED strip is no problem.
On Friday, April 11, 2025, 7:33 AM, KG2RG via groups.io <justinandyazny@...> wrote:
Hello,?
I have a Commander HF 2500. Have not had it to long. When I got it, only 1 of the 4 meter bulbs was working. After about 3 month, the bulb went dark.?
I believe there is a 12V 1A regulator that
supplies the meter bulbs and the relay. I read the pulls are Festoon type and need to be no more the 0.08A each so to not exceed max current and cause the relay to no key. I finally got in there and they are not the fuse looking type bulbs. They are little bulbs with with short leads soldered to the meter board.?
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i finally got in there because I had another Issue with the standby switch. I think the standby switch was intermittent and a relay was not keying sometimes. I started noticing the problem when I would first turn on the amplifier after the short warm-up., I placed the standby switch into operate and the amp would not key. At first, I thought this issue may have been the regulator or something else, but I started to notice the symptoms would often happen after using the standby switch. I originally planned to bypass the switch and see if the problem went away and then I could replace the standby rocker switch. But when I got in there, I noticed there was another set of poles that were vacant and likely never used so I decided to utilize it those and see how things went. I cleaned all of the contacts and the plugs on the wire wires with deoxIt, And then plugged the wires onto the never used terminals on the other pole. So far it’s been great for the past 24 hours. I’ll give it some time, but if the problem comes back, then I’ll try bypassing it and if the problem still persist during bypass, I’ll look to see other possible causes but so far things are good and my fingers are crossed.?
after messing around with the standby switch, I pulled the metering board out and surprise, it was not the fuse type bulbs. These bulbs had short leads soldered to the meter board.
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does anyone have a recommended replacement bulb suggestion? They likely need to be 12VDC at 0.08A. I should’ve used my caliber to measure the size so I’m not sure what size and what type of bulb or where I can source replacements. Any help would Be very appreciated!?
kG2RG
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