People haven’t figured out that those old icky ones are actually the better ones.
Maybe after the switching power supplies start dying, they will wish they hadn’t tossed the old ones!
I keep a couple of those larger Denon units around also, usually have requests from friends/family for basic, decent power amps.
I scored a car leather interior kit for $500 after the company had been bought out by a competitor. Competitor wants $1200 for the same thing.
Maybe after the switching power supplies start dying, they will wish they hadn’t tossed the old ones!
I keep a couple of those larger Denon units around also, usually have requests from friends/family for basic, decent power amps.
I scored a car leather interior kit for $500 after the company had been bought out by a competitor. Competitor wants $1200 for the same thing.
SMPS installed, no clicking from mouse (!), and no muting of sound when anything other than Winamp started. That was a peculiar fault...
Washed with soapy water, dried in sun, lubed fan (oil still wet, so hardly used), replaced a 2200uF/6.3V with a 2200uF/16V, put it back together.
Then replaced in the CPU, worked first time.
Washed with soapy water, dried in sun, lubed fan (oil still wet, so hardly used), replaced a 2200uF/6.3V with a 2200uF/16V, put it back together.
Then replaced in the CPU, worked first time.
jj: Look inside the Denon, if something is missing, the transformer seems to be in place if it powers on.
Do lube the internal cooling fan.
And see if your own weight is accurate on the scale.
If not, strip and lube it, the springs slide things on guide ways, and dry grease can cause erratic readings.
It is basically a spring balance, with an indicator, and a way to read the weight on the platform.
Do lube the internal cooling fan.
And see if your own weight is accurate on the scale.
If not, strip and lube it, the springs slide things on guide ways, and dry grease can cause erratic readings.
It is basically a spring balance, with an indicator, and a way to read the weight on the platform.
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A few DC-DC switching boards, 5-12V DC input, 5 / 3.3 / 2.5 /1.8 / 1.25V outputs, postage stamp size, 50 cents each.
Peculiarly, the positive pole is common, and the selection is on negative pole.
Used one to drive a small mains fail emergency light, battery and circuit were failed, so I used that and a small 220 VAC / 12VDC 1A SMPS to drive the LEDS, works nice as a small high lighting lamp.
Also some PCBs populated with white LEDs, 12V input, put a couple in old 11W CFL housings, quite good light, have to drill holes for ventilation if they need continuous use.
A couple of 4" 220V panel fans, as vebtilation for bathrooms, quite effective, in 2 bathrooms.
Peculiarly, the positive pole is common, and the selection is on negative pole.
Used one to drive a small mains fail emergency light, battery and circuit were failed, so I used that and a small 220 VAC / 12VDC 1A SMPS to drive the LEDS, works nice as a small high lighting lamp.
Also some PCBs populated with white LEDs, 12V input, put a couple in old 11W CFL housings, quite good light, have to drill holes for ventilation if they need continuous use.
A couple of 4" 220V panel fans, as vebtilation for bathrooms, quite effective, in 2 bathrooms.
Replaced the lead acid battery in a small torch with a 3.7 V 1000 mAh Li-ion cell, AA size, $ 1.25, more than what the torch costs, but those are more reliable than lead acid, particularly in occasional use, the power rarely fails here, and when you find the rechargeable torch is dead, it is a problem.
A Mag-Lite shape Chinese torch, with a a replaceable Litium cell, just $3.50 or so, with a charger, the LED, if green, says no need to charge, and it turns red when mains is on, as a charging indicator.
2 foot spot at 400 feet, quite well focussed, does not seem water proof, but in the car or around the house, quite good enough for me.
There is a round end plug, open to replace the cell, no need for a skilled person to replace the battery.
I have been putting 18650 cells, 2.6 or higher A-H rating, as direct replacements in torches / lamps with lead-acid batteries, they work well without circuit modification, I stick them in place with adhesive tape, the supplies are usually R-C networks...
The cells are sold with and without flying leads, got a 6000 mAh claimed one without leads for $1 or so.
2 foot spot at 400 feet, quite well focussed, does not seem water proof, but in the car or around the house, quite good enough for me.
There is a round end plug, open to replace the cell, no need for a skilled person to replace the battery.
I have been putting 18650 cells, 2.6 or higher A-H rating, as direct replacements in torches / lamps with lead-acid batteries, they work well without circuit modification, I stick them in place with adhesive tape, the supplies are usually R-C networks...
The cells are sold with and without flying leads, got a 6000 mAh claimed one without leads for $1 or so.
