Tried to recap a tube receiver, and failed.

or

was

I agree. I am a professional electronics tech for over 40 years and nowhere in this newsgroup does it say its for professionals only. I applaud those people who want to challenge themselves and tackle something they haven't done before. I can say I have made many mistakes, some rookie mistakes and some that I knew better but made them anyway. My worst was resting my left arm on a metal TV cabinet with a mirror as I was making an adjustment. I caught a stand-up resistor in the power supply right off the rectifier tube with my right arm and almost ended my life. Pretty dumb. But I am sure we have all made some mistakes like solder bridges or cold solder, wrong values, etc.

Now...the absolute best advice I can give is that in a new venture that one has not undertaken before is to ask FIRST in this newsgroup. I myself would be more than happy to point someone in the right direction before they start. Remember there are no stupid questions, only stupid answers.

Jim

Reply to
Jim Poore
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you

just

I wasn't implying to change the capacitors all over again, I was saying that in a new project to change them all. Sorry if I was unclear on that.

Jim

Reply to
Jim Poore

Apparent to who? A f*****ad kike you? I've restored several old shortwave receivers in my 52 years on this planet. I've built tube audio amps from the scrap bin. I've worked with spaghetti wiring on and off for 35 years. So when you say it's "offensive" to me you're trying to be cute and witty. My point wasn't the op's description of the wiring but rather his description and for thinking someone could just snap there fingers and be able to help him back track what all he has done and basically tell him how to fix it. My reply was honest and came from over 3 decades of experience. Now get your head out of your ass and tell the op what he wants to hear no matter bullshit or not.

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Reply to
Meat Plow

that

that

Oh you are the OP I see. When you're stupid and want someone to diagnose the problem half way around the globe, it only takes me 24 hours to forget you even exist.

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Reply to
Meat Plow

Good advise.

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Reply to
Meat Plow

the squishy sound was due to power supply issues... could have been a cap issue floating around.. u need to take careful measurements of ur power supply a VTVM will not load down the circuits when u look at them.. good luck

Reply to
n6kzw

You know not of what you speak. I was probably repairing tube equipment before you were born. And much tube equipment is very un-spaghetti-like.

Or maybe we have different ideas of what spaghetti looks like.

I meant are the PLATES glowing red. Of course the heaters would be glowing.

replaced

the

like.

Now

... or even know how to spell it.

so I will probably just sell off the tubes and toss the chassis.

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Reply to
CJT

Even the best of us who've got years of experience can make errors. Unless you were in a shop working side by side with or had access to other techs - "tough dogs" could really cause some wasted time. This forum and many others like it - provides an invaluable asset to all of us for working on things. None of us could know ALL the answers. Some things don't make sense sometimes and aren't always so clear to the eye. I've seen things appear to buck all theory - but - I still found the cause and corrected the issue. You have to keep an open mind when doing this stuff. Unless you can definately say an area/circuit has been isolated as not being at fault - don't rule it out.

It is those issues where you must stop - analyze what has been done, all previous and current signs and so on. Any "help" issued - is a plus. Of course - it helps to give a complete and thorough analysis of the problems before you started, all steps taken and so on - as none of us can see your project, have a clue what you've done OR know your experience to know where/how to proceed to help. Are we to give you "basic" electronics knowledge to help OR are you advanced with lots of equipment we can tell you to use, etc.? You said you left out telling us some of the things you've done - which you apparently thought mundane items. Who knows - one of those steps - might have clued one of us in - to your problem!

Maybe not ALL of our ideas will help - but only because we do NOT know your exact situation. So - rather than shoot down any helpful ideas - take them in stride - try them out - or mark them all down - take a day and do them - then get back to us with the results.

OH and as for your new parts - IT IS POSSIBLE to buy defective parts. I've had it happen. I'm sure others have too. Radio Shack was good for that. As an example, I ordered a transistor once for a CB set - the issue narrowed down. I was sent a "replacement". I didn't bother to check it before installation. Turn on the switch - and smoke appeared. I checked it - and called the parts supplier. Here - THEY had a transistor "marked in their records" as a Sub - when in fact it was not. They apologized to me for the error - sent me a new "correct" part and offered to pay me for my time and any other damaged parts. And with the RS parts - I've had occasion to plug in a diode, transistor, etc. and find it to be bad. Took back out of circuit and tests revealed open parts in most cases. It might be extra work, but I double check my parts (if I can) - before installing. I'd rather know they're good BEFORE I put them in than to find out after - they weren't. In most cases, that few seconds can save a lot more time. And I HAVE caught a few more "defective" new parts since I've learned to do this from experience.

As to your caps - I've seen many a chat in these groups discussing some brands to be very poor in quality - so who knows - maybe you latched on to some of those? At this point - anything is possible. Some of the other folks gave some damned good advice - best to just take time to prove out one way or another - what is happening. For now - we're all guessing - since we're going by what you say and we're not there to see it.

As for "Spaghetti" - that term could be overkill. Wiring used before PC boards was often labeled as such. Even afterwards. Be it a lot of wiring or a little - the term could be being used. It is no big deal. The only way it could make a difference is if a wire "is" going to a wrong place, a piece of braid or a stray conductor from one of them is shorting OR something along the lines of inductance is happening as a result.

Don't give up on the project - "LEARN" from it. The knowledge acquired from repairing it could outweigh any cost you've got into it thus far. I can't recall if you've got the schematic for it or not - if not - you may want to get it and study and compare. That could be immeasureable.

As to the sound being "Squishy" - here's where a scope "may" have come in handy "BEFORE" tearing into it. So.......... there are lots of things to look at and consider. NO - you don't want to "waste" time - no one does. But in this case - working in the dark - there may be little choice til something starts to present itself.

Just my 2 cents.

Reply to
Radiosrfun

Go to paul stenning's 'uk vintage radio repair and restoration forum' . There you will find numerous specialists. Post the exact model and make and year if poss.

-B.

Reply to
b

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