Metalwork - Lathe and Mill topics

Thursday, 4 August 2022

[Amateur-repairs] test picture

testing for picture attachment

----------------------------------------------------
Some ham radio groups you may be interested in:
https://groups.io/g/ICOM https://groups.io/g/Ham-Antennas
https://groups.io/g/HamRadioHelp https://groups.io/g/Baofeng
https://groups.io/g/CHIRP https://rf-amplifiers.groups.io/g/main

-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#86084): https://groups.io/g/Amateur-repairs/message/86084
Mute This Topic: https://groups.io/mt/92812631/693790
Group Owner: Amateur-repairs+owner@groups.io
Unsubscribe: https://groups.io/g/Amateur-repairs/leave/4530700/693790/458576413/xyzzy [jhjoshan@gmail.com]
-=-=-=-=-=-=-=-=-=-=-=-

Saturday, 9 July 2022

Re: [Amateur-repairs] test message

It went through!

Lou WA5LOU

Group Moderator

On Sat, Jul 9, 2022 at 9:47 PM Richard Knoppow <1oldlens1@ix.netcom.com> wrote:

I got a bounce and am checking if this goes through

_._,_._,_

Groups.io Links:

You receive all messages sent to this group.

_._,_._,_

Re: [Amateur-repairs] test message

Test failed, please call support

Enviado do meu Tele-Movel

Em sáb, 9 de jul de 2022 22:47, Richard Knoppow <1oldlens1@ix.netcom.com> escreveu:

I got a bounce and am checking if this goes through

_._,_._,_

Groups.io Links:

You receive all messages sent to this group.

_._,_._,_

[Amateur-repairs] test message

I got a bounce and am checking if this goes through

-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#85723): https://groups.io/g/Amateur-repairs/message/85723
Mute This Topic: https://groups.io/mt/92283023/693790
Group Owner: Amateur-repairs+owner@groups.io
Unsubscribe: https://groups.io/g/Amateur-repairs/leave/4530700/693790/458576413/xyzzy [jhjoshan@gmail.com]
-=-=-=-=-=-=-=-=-=-=-=-

Saturday, 15 January 2022

[LL] Test

_._,_._,_

Groups.io Links:

You receive all messages sent to this group.

_._,_._,_

Monday, 22 March 2021

Re: [Amateur-repairs] Opinions and thoughts on some old Heathkit test gear

#3. Flyback and yoke ringer still has value as a switching power supply transformer tester. You can to this day buy new ring testers:. http://www.electronicrepairguide.com/blue-ring-tester.html

Completely handy when you need one but how many times unless you're in the business are you going to check a switch mode power supply transformer for shorted winding?

randy.ab9go@gmail.com

_._,_._,_

Groups.io Links:

You receive all messages sent to this group.

_._,_._,_

Saturday, 20 March 2021

Re: [Amateur-repairs] Opinions and thoughts on some old Heathkit test gear

On Sat, Mar 20, 2021 at 01:17 PM, Tim Reimers KA4LFP wrote:

Heathkit IG-3120 FET/Transistor tester

I have one of these transistor checkers. I assembled it in 1977 and have been using it ever since. It has the ability to change the current through the transistor to measure changes in gain or in some cases total failure. I really like this feature and am still using it while working on classic stereo equipment. I would like to get rid of the batteries but there is no room inside to construct two 1.5 volt power supplies. For that matter 2 volt supplies would work fine. This tester has one small problem that you must deal with. When testing transistors with high current, the battery connection must be perfect or the reading will waver. You need to know if this waver is a transistor fault or just the battery. I solder my batteries into this tester to stop this problem. I keep considering the possibility of making a power supply that has two 2 volt supplies. It would have to be external and I hate to have this tester in two pieces.

Most testers just use tiny amounts of current to test the transistor. In my view, this is not satisfactory. Of course this tester also measures all the possible points of leakage with great sensitivity. I would never part with this tester.

_._,_._,_

Groups.io Links:

You receive all messages sent to this group.

_._,_._,_