Badcaps.net Forum
Go Back   Badcaps Forums > Search Forums
Register FAQ Members List Social Groups Calendar Search Today's Posts Mark Forums Read

Showing results 1 to 25 of 137
Search took 0.19 seconds.
Search: Posts Made By: midibob
Forum: Audio Equipment Discussion 07-02-2014, 01:08 PM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

Hi Paul,

Are you able to PM me as I'm unable to send you a message. If you can let me have your Email address I'll forward you the details.

Thanks
Midbob
Forum: Audio Equipment Discussion 05-19-2014, 01:34 PM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

Hmm, so it all sounds a bit inconclusive.
I'm still unsure what you are seeing at the headphone socket? Is everything clean there, guitar and Aux? When I test these I use a signal generator so I...
Forum: Audio Equipment Discussion 05-17-2014, 02:25 AM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

On these amps the headphone output is before the chip so if all is well there then it further confirms the fault to be the chip. Not sure I understand when you say the Aux in sounds clean? Do you...
Forum: Audio Equipment Discussion 05-16-2014, 02:24 PM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

No problem, the grounds on these little beasts aren't where you'd expect them!

It does sound like the chip is playing up. Have you tried running it from batteries. In theory it won't make any...
Forum: Audio Equipment Discussion 05-15-2014, 01:17 PM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

That doesn't sound right?
You should only see half the supply voltage between the speaker terminals and ground. Being as the chip should only be fed with 5V you should measure approx 2.5V. Where are...
Forum: Audio Equipment Discussion 05-14-2014, 01:18 AM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

Hi Microamp,

I must admit I haven't come across one yet that has been badly distorted. Usually the chip just blows. You could just confirm that the 5V rail is OK that feeds the chip. It's supplied...
Forum: Audio Equipment Discussion 04-14-2014, 12:45 PM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

Hi Craciun,

I'll send you a PM.
Forum: Audio Equipment Discussion 03-18-2014, 11:07 AM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

Hi Taylor.
No problem I'll send you a PM.
Forum: Audio Equipment Discussion 03-03-2014, 09:45 AM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

Hi Aimjam,

I'll PM you.

Midibob
Forum: Audio Equipment Discussion 03-02-2014, 11:16 AM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

Yep,

I'll send you a PM.

Midibob
Forum: Troubleshooting TVs and Video Sources 02-16-2014, 01:40 PM
Replies: 0
Views: 179
Posted By midibob
Toshiba 28YT56 Vestel 11AK49-7 chassis

Hi,

Got one of these old huge CRT tele's in to repair for a friend. I wouldn't have touched it otherwise as it's a 2 man lift!

Anyway, the problem is it just trips about 1 sec intervals with...
Forum: Audio Equipment Discussion 01-29-2014, 12:35 PM
Replies: 68
Views: 8,625
Posted By midibob
Re: Tannoy Reveal 6D

The mirrored link works for me OK?
If you can't get it to work drop me a PM with your mail address and I'll send them across.

Midibob
Forum: Audio Equipment Discussion 01-29-2014, 12:30 PM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

I'm sure you'll find many tutorials on Youtube. I can't recommend any specific ones as I've never needed to look.
I've sent you a PM with my mail address. If you reply I'll send you the instruction...
Forum: Audio Equipment Discussion 01-29-2014, 02:53 AM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

Yep, that would appear to be the case as that's the usual problem.
I can send you a board but I suspect you'll need to find someone to fit it for you.
I could do it here but the postage costs each...
Forum: Audio Equipment Discussion 01-25-2014, 01:54 PM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

Hi Andrei,

The quick check is to test the resistance between the speaker leads and ground.
Make sure it's turned off and then check the resistance with the speaker disconnected from both leads to...
Forum: Audio Equipment Discussion 12-30-2013, 01:11 PM
Replies: 24
Views: 4,456
Posted By midibob
Re: Behringer Eurorack UB2442FX-PRO Bad Capacitors

Hi,

I would also get rid of that gunk that was holding the cap on the mixer board. This stuff goes conductive after a few years and I find it unbelievable that some manufacturers still use it....
Forum: Audio Equipment Discussion 12-03-2013, 04:42 AM
Replies: 68
Views: 8,625
Posted By midibob
Re: Tannoy Reveal 6D

Looks like you're almost there. I can't remember now when L1 failed on mine whether it was down to one of the ic's on the other boards. I'm sure it won't take you long to find it.

Interesting that...
Forum: Audio Equipment Discussion 11-12-2013, 12:46 PM
Replies: 3
Views: 278
Posted By midibob
Re: Site with schematics

Good find.
I'll have to upload some of my old schematics.

Midibob
Forum: Audio Equipment Discussion 11-06-2013, 10:33 AM
Replies: 68
Views: 8,625
Posted By midibob
Re: Tannoy Reveal 6D

Hi TJC,

Can't say I've ever done it that way although not a bad idea.
Normally I'd use Eagle CAD which is pretty time consuming to try and get an exact replica.

Just a thought and I'm no...
Forum: Audio Equipment Discussion 10-19-2013, 12:16 PM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

Hi Andy,

Yep, made up a few ready for anyone that needs them.
I'll try sending you a PM with my email address and we can correspond.

Cheers
Midibob
Forum: Audio Equipment Discussion 08-24-2013, 11:55 AM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

Hi,
I suppose you could just extend the connections from the existing jack socket as it looks like it just signal and ground. I don't know what the voltage level is presented there so you may need...
Forum: Audio Equipment Discussion 08-20-2013, 02:11 AM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

Hi Ben7,

I didn't want to complicate the board more than needed although I suppose you only have to click a button on the CAD software, also I didn't want too much exposed area of copper that...
Forum: Power Supply Design and Troubleshooting 07-24-2013, 09:01 AM
Replies: 5
Views: 447
Posted By midibob
Re: Ups es500 back-up plus no power

From my experience of APC UPS's if the batteries are very low nothing appears to work at all. More often than not just changing the batteries is all you need to do.
You can often pick APC UPS's up...
Forum: Audio Equipment Discussion 07-24-2013, 08:50 AM
Replies: 76
Views: 7,054
Posted By midibob
Re: Vox mini 3 amp

The Panasonic FP series I eventually found at Radiospares and these have proved to be a perfect replacement as their ESR is rated at 0.85ohms.

Just waiting now for reports to come back from a...
Forum: Power Supply Design and Troubleshooting 07-24-2013, 03:36 AM
Replies: 8
Views: 737
Posted By midibob
Re: Transformer identification

Received a reply this morning and the actual windings are :-

0/100/115/215/240v
0/9.5v 14.5/0/14.5v

Not sure how I got those strange figures before on the centre tapped winding but hey ho!...
Showing results 1 to 25 of 137

 
Forum Jump

All times are GMT -6. The time now is 11:30 PM.


Badcaps.net Technical Forums 2003 - 2014
Powered by vBulletin ®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.

Did you find this forum helpful?