Electronics Repair

Code entry door-lock problem

Internal security door, battery powered, changing battery made no difference, maker unknown. For some people would work...

10 comments posted 7yrs

posted by diverse

10 comments posted 7yrs posted by diverse

Weird Ryobi battery behavior

I have one of the early Ryobi 18V Li-Ion battery packs (I think it's 2.4Ah -- ten separate cells: five paralleled pairs...

7 comments posted 7yrs

posted by Nobody

7 comments posted 7yrs posted by Nobody

Fixing a headphone jack

I have a 1990's era AM/FM Cassette player. It works fine, except that it on ly plays on the left side. The right channe...

10 comments posted 7yrs

posted by kmath50

10 comments posted 7yrs posted by kmath50

Anybody got a Wells Gardner 9K7704 yoke?

Table top arcade game from Merit. Horizontal windings burned under the convergence magnet tape. I separated the winding...

1 comments posted 7yrs

posted by ohger1s

1 comments posted 7yrs posted by ohger1s

OT - Radio Repair Clinic

http://www.dvhrc.com/pdfs/Oscillator%20Summer%202019.pdf I am on Page 7. That is a vintage Kutztown Klinic picture, but...

0 comments posted 7yrs

posted by peterwieck33

0 comments posted 7yrs posted by peterwieck33

Transistors

Hi Folks Having some trouble finding some transistors. I am repairing a switch mode power supply and have a number of t...

12 comments posted 7yrs

posted by ejb

12 comments posted 7yrs posted by ejb

Vizio no pic

hi group, i'm working on a Vizio 39 Tesla model..E470va, so it's a 47 inch, I have no picture no audio, I do get the co...

40 comments posted 7yrs

posted by stankowalski02

40 comments posted 7yrs posted by stankowalski02

Is this a fuse?

It was in a variac, connecting the wiper to its terminal. It had a connector tab on each end & was inside the sleeve. I...

8 comments posted 7yrs

posted by BobEngelhardt

8 comments posted 7yrs posted by BobEngelhardt

Full wave voltage reading

If I measure a full wave voltage with a non true-RMS common variety DMM*, will it be off by a known factor, from the tr...

21 comments posted 7yrs

posted by BobEngelhardt

21 comments posted 7yrs posted by BobEngelhardt

SMPS troubleshooting

I have an automotive battery charger like this one: http://www.carstel.com/index/product/product_info/id/100.html I hav...

15 comments posted 7yrs

posted by none

15 comments posted 7yrs posted by none

Anybody ever painted a phone?

There was a wall mount phone made back in the 60s called the "Space Saver". I really like these phones and have looked...

20 comments posted 7yrs

posted by etpm

20 comments posted 7yrs posted by etpm

Rusting of Satellite Dishes

Working on this project concerned with rusting of satellites dishes I would like any suggestions on any material that ca...

4 comments posted 7yrs

posted by k.ukuaortsin21

4 comments posted 7yrs posted by k.ukuaortsin21

Weather Station

My weather station went down after years of service. Changed out the THREE rechargeble alkaline batteries and it ran fo...

14 comments posted 7yrs

posted by X

14 comments posted 7yrs posted by X

Guitar pre Rocktron Pro G.A.P. 2 ,noisy..related to display

Hi to all the people here I bought the old preamplifier,i remember it as pretty silent,and the "apparent" S/N ratio is...

5 comments posted 7yrs

posted by blisca

5 comments posted 7yrs posted by blisca

OT Vacuum Bottle

Looking for but not sure the technical name of the intermediated water bubbler bottle that goes between the vacuum pump...

11 comments posted 7yrs

posted by X

11 comments posted 7yrs posted by X