Bent threepence

[Fulvio]

Yes probably best to leave well enough alone.

Nah, bugger that. Just use one of these Telecom Micro-Adjusters (Telstra just doesn't have the same ring to it, sorry) as used by phone techs since Bell invented the damned things.

"If belting it didn't do the job, you need a bigger hammer!" :angel:

[JeffH]

Don't laugh -a popular, early colour TV chassis was the Philips "K9"; used in many Australian built brands. It was susceptible to mechanical faults in the delay line which could sometimes be cured (usually only temporarily) by giving it a tsp. Most likely the fault was a dry solder joint. Replacing the delay line was an expensive exercise.
I had just finished fixing a TV antenna system one day when the customer mentioned the TV in his bedroom would not show colour. Sure enough a K9 based set. I told him the only way to cure it, apart from buying a new set, was to give it a bash. I thumped it hard with the heel of my hand and, lo and behold, it came good! Continued to work perfectly until it was replaced recently by a new flat screen set.
I don't know who was more surprised -me or the customer.

I had a Kriesler set that needed a smack about once a week.

I left the obvious pun to uni.

[Fulvio]

I had a Kriesler set that needed a smack about once a week.

Sounds like out Nordmende TV, which I've still got holding up some dust someplace. :angel:

[nealeffendi]

Yeah, they're simple and work great. Believe it or not I've had the same pair of brass angle plate protectors since I was an apprentice, and still in use on my bench in the back shed today.

Getting back to straightening bent planchets, the problem with straightening a disc that exhibits a raised outer rim is that you can't apply equal or even pressure to all surfaces at the same time without a stepped tool that allows this to happen. So the logical solution is to turn up two stepped blank dies  in a lathe and use these to apply pressure to both sides of the planchet at the same time with the use of a press or vice.

Not everyone has access to the equipment necessary, so what if two short lengths of soft rod made from aluminium, each being a tad smaller in diameter than the inside rim, was used in conjunction with a vice to provide the same effect on the central planchet area. A thin disc of plastic cut to the same diameter and glued to each rod end (I'm thinking .020" styrene, available at any good hobby shop) would provide added protection to the surfaces.

Following on from this, it would be a pretty simple process to then apply pressure to the outer rim in a similar manner. Maybe then repeat the process a few times till satisfied.

When in doubt......just do it :yahoo:

This sounds the best idea yet.
And as for banging on the TV, that brings back memories of the time when TVs (black and white) were known as TVs and colour TVs were something that looked all weird and unnatural in the shop windows.

[Unicorn]

I had a Kriesler set that needed a smack about once a week.

I got me a Kriesler, it's screen's about 20
So hurry up and thump that cabinet honey
The lounge room is a little old place where we can get together
Pictures back, baby (TV's on, baby)
Pictures back, baby, Pictures back

Bang bang bang on the side baby
Knock it a little harder Jeffrey
Bang bang bang on the top baby
I can't see you
Bang bang bang on the back baby
Knock a little harder sugar

[JeffH]

And the obvious pun?




K9 chassis

What a dog of a set!

P.S. Is there a tune for those inspired words? And the screen was 26.

[Unicorn]

Did it leave hair in the house?

Music ..... of course there's music :laugh2:

https://www.youtube.com/watch?v=9SOryJvTAGs

[Nevol]

Similar thread on CCF, re a 1855 Canadian 5c.

Probably won't hurt to watch it & see if any useful remedies are posted.

http://www.coincommunity.com/forum/topic.asp?TOPIC_ID=267504

[ausjack]

vice guards and cloth then.

[serial]

Am I the only one here who considers this "doctoring" of a coin to hide the fact it has been damaged beyond numismatic value?
Perhaps next we can discuss artificially toning a coin to hide cleaning marks, using putty to plug holed coins and re-tooling details onto a coin to go from 4 to 8 pearls ,all doctoring techniques I have encountered in my time collecting, some which have burnt me

[autocoupler]

Depends on how badly bent a coin is IMHO. Obviously anything that is bent acutely would be impossible to do anyway, but I see nothing wrong with removing a slight curvature that has not left any visible sign of creasing of damage.

Just an after thought; if the coin did display a visible crease for example, it would be there for all to see anyway.

[serial]

Depends on how badly bent a coin is IMHO. Obviously anything that is bent acutely would be impossible to do anyway, but I see nothing wrong with removing a slight curvature that has not left any visible sign of creasing of damage.

Because it is impossible to return the coin to its original shape once deformed no matter how minor. All you can do is his the damage from plain sight. Metal bent is metal stretched and you cannot unstretch metal

[Fulvio]

Metal bent is metal stretched and you cannot unstretch metal

Meh, give it a few more years and you'll just be able to scan it and use laser ablation to make a new one devoid of defects.

And while yes, I'm joking, there is a serious side to this too. What happens when technology allows something to be manufactured which is not just undetectable to the naked eye, but undetectable, period?

"How many 1930 pennies would you like, and do you want some 2000 mules to go with that order?"

[autocoupler]

"How many 1930 pennies would you like, and do you want some 2000 mules to go with that order?"

Maybe this is where the TPG's and recorded provenance can hold off the onslaught, then say for example in the year 2525 we draw a line in the sand, and everything after that is considered fake :dodgy::angel:

[robbiegal]

Am I the only one here who considers this "doctoring" of a coin to hide the fact it has been damaged beyond numismatic value?
Perhaps next we can discuss artificially toning a coin to hide cleaning marks, using putty to plug holed coins and re-tooling details onto a coin to go from 4 to 8 pearls ,all doctoring techniques I have encountered in my time collecting, some which have burnt me

not really,
it's a form of restoration regarding an example if you are just keeping the coin
the coin obviously has value even with the bend , as the poster bought the thing on the internet

an experienced numismatist would spot any alterations ?
if in the hand - not some fussy ebay photo mind you

luckily I don't really collect silver
if someone tried to unbend a penny I reckon it wold-be very obvious