Search found 250 matches

by toejam
Sun Oct 10, 2004 4:13 am
Forum: General Discussion
Topic: Uh oh...he's done it again...geez...
Replies: 42
Views: 18197

Re: Uh oh...he's done it again...geez...

If I' getting your information correctally, yoy are takind the leads from tht vom and potting them on those of the capacitors and either getting a slowly decreasing resistance reading.Thas shows the wiring to the caps is not shoeted.You now should measure the voltage across the large caps and see if...
by toejam
Fri Oct 08, 2004 6:51 am
Forum: General Discussion
Topic: seeburg amp question
Replies: 23
Views: 5738

Re: seeburg amp question

modrob: the main reason tormat models lose selection to one side is due to a loose connection on one of the contacts that slide on the long contacts on the tormat. there is a wire going to each one of them and you can reconnect them on your back. Give aech one a little pull and the pin should move d...
by toejam
Thu Oct 07, 2004 2:55 pm
Forum: General Discussion
Topic: seeburg amp question
Replies: 23
Views: 5738

Re: seeburg amp question

does that lp1 use a tormat?
by toejam
Thu Oct 07, 2004 5:16 am
Forum: General Discussion
Topic: seeburg amp question
Replies: 23
Views: 5738

Re: seeburg amp question

ont thing you can check is the needle seated completly in the cartridge? Did you try to play it before you recapped it? I'm not sure if thoes models had a motorized volume control if not, check the connections to it with the schematic and ohm out the pot. Make sure there are no jumpers missing. Chec...
by toejam
Mon Oct 04, 2004 8:15 pm
Forum: General Discussion
Topic: Uh oh...he's done it again...geez...
Replies: 42
Views: 18197

Re: Uh oh...he's done it again...geez...

assuming the diodes are still good and those guy were pretty hefty, hook a 40 watt light bulb in series with one oh the ac input wires. whwn you plug it in the light shoulg glow brightly. than ramove the caps one by one till the light gets dim (unpluging is when you pull the caps).the one you pulled...
by toejam
Sun Oct 03, 2004 10:02 pm
Forum: General Discussion
Topic: MS 555 timer false trigger
Replies: 9
Views: 3264

Re: MS 555 timer false trigger

I assume yuu are using a switching power supply. You might want to check the filter caps in it. if it is a 32 amp supply you may not be loading it enough for it to regulate properly.
by toejam
Sun Oct 03, 2004 11:35 am
Forum: General Discussion
Topic: MS 555 timer false trigger
Replies: 9
Views: 3264

Re: MS 555 timer false trigger

Those 555's have a very high input impedance. You might try putting a 1 meg or smaller resistor between the input and ground.
by toejam
Sat Oct 02, 2004 5:56 am
Forum: General Discussion
Topic: Uh oh...he's done it again...geez...
Replies: 42
Views: 18197

Re: Uh oh...he's done it again...geez...

it sounds like you have a short in the power supply That was not there before you replaced the caps. There is the remote possability that one of them is shorted or mislabled, but I would go over the board again looking for a solder bridge. The things can be hard to find, so clean the flux off the bo...
by toejam
Thu Sep 30, 2004 1:09 am
Forum: General Discussion
Topic: Lamp Current vs Voltage
Replies: 40
Views: 8734

Re: Lamp Current vs Voltage

Joseph
What i was thinking about was the mechinacal stress due to the constant polorazation reversal caused by ac. I once had a couple of carbon filament edison bulbs and although the glass was darkened they still worked. Now bulbs seem to last at the very most as long as thier stated life.
by toejam
Wed Sep 29, 2004 7:06 am
Forum: General Discussion
Topic: Lamp Current vs Voltage
Replies: 40
Views: 8734

Re: Lamp Current vs Voltage

just to add, if you want a bulb to last a LOT longer and can accept a little less output put a diode in series with one.I wonder what a full wave bridge would do?
by toejam
Fri Sep 24, 2004 4:43 am
Forum: General Discussion
Topic: Ferrox Cube
Replies: 8
Views: 2749

Re: Ferrox Cube

what is a ferrox ube?
by toejam
Fri Sep 24, 2004 4:41 am
Forum: General Discussion
Topic: Simple Water Detection Circuit
Replies: 10
Views: 2663

Re: Simple Water Detection Circuit

since you are dealing with a sizable amount of water and dependability is needed, a mechanical bilge pump switch may be the best thing. It uses no ambient current and most of them cam handle a 10 amp load.
by toejam
Sat Sep 18, 2004 8:34 am
Forum: General Discussion
Topic: transformer/rectifier question
Replies: 11
Views: 3172

Re: transformer/rectifier question

k7elp60;
One thing that comes to my mind is power factor and va of a transformer. my memory ia a bit lax on those facts and maye someone could enlightem me as to this factor in power supply design
by toejam
Sat Sep 18, 2004 4:32 am
Forum: General Discussion
Topic: transformer/rectifier question
Replies: 11
Views: 3172

Re: transformer/rectifier question

k7elp60 you say that by putting a large cap in parallel to a fw. rectifier and applying a load that matches it's capacity,that transformer's capacity needs to be upped by 60%? I do remember substituting a higher value cap in an old tube amp and the power transformer did fry, but i never attributed i...
by toejam
Thu Sep 16, 2004 9:37 pm
Forum: General Discussion
Topic: Hints for a rookie writer?
Replies: 34
Views: 6116

Re: Hints for a rookie writer?

just how does the accelerator pedal make a new car go? Show your stuff. You will learn from this. Good luck.