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Replacement pot - Goodrich VP
Posted:
Sat Apr 22, 2017 7:23 pmby Nick Bidmade
The Geordie legend (he tells me to say this) Jim Hornsby is a neighbour!!
He's after a replacement pot for his Goodrich volume pedal.I told him I thought the Jim Dunlop 'Hot Potx' was a contender but I know nowt about the electronics end of this game and burst into tears if I see a soldering iron (Ken Byng will confirm).
Am I right in thinking the Hot Potz 470 is a suitable pot for his VP? Where can one be obtained? (Relax, Ken, I'm not going to offer to help change the string!)
All advice gratefully received.
Howay (as they say up here).
Re: Replacement pot - Goodrich VP
Posted:
Sat Apr 22, 2017 8:02 pmby Gretschnut
Hi Nick. Please say hello to Jim as I remember happy days at the Lemonfield in Sunderland with Gordon and Lillian.
Re: Replacement pot - Goodrich VP
Posted:
Sat Apr 22, 2017 9:12 pmby Tony Russell Davis
The Lemonfield! Just up from the Seaburn Hotel? Small world doesn't even get half way; lived next to the windmill, top of Sea Rd., for years.T.
Re: Replacement pot - Goodrich VP
Posted:
Sat Apr 22, 2017 10:57 pmby dessa
I can recommend the Dunlop Hot Potz 470k I have had one in my heavily used pedal for over 3 years. !!!
Check eBay I believe Solsound sells them for around £25
Re: Replacement pot - Goodrich VP
Posted:
Sun Apr 23, 2017 1:22 amby bob adams
Good suggestion from Dessa... Sol is a nice chap I've called in at Potters Bar a couple of times, he has invested in some really good gear! No hesitation in recommending him.
Re: Replacement pot - Goodrich VP
Posted:
Sun Apr 23, 2017 8:34 amby jonshack
Nick, the Dunlop pots work really well, the only slight drawback is it's a little tricky to get the lugs hot enough for a good solder joint. A really hot soldering iron and some patience is required is all. This is why Tom Bradshaw sells them with wires pre soldered. I'm not sure if the exchange rate and shipping from Tom is prohibitive these days but he also has a not-happy-pay-nothing policy on the pots, which is pretty great.
Re: Replacement pot - Goodrich VP
Posted:
Sun Apr 23, 2017 6:19 pmby Ken Byng
Nick - Jon Shacklock and Derek Thurlby have given first class advice. The only thing that I would add is that the original Hot Potz had a taper that was not the same as the Allen Bradley long life pots by which all subsequent pots have been measured against. Jim Palenscar and Kevin Ryan who now own the Dunlop company have invested in a new Hot Potz 500K pot with an identical taper to the Allen Bradley. They are not inexpensive, but they can come pre-wired. More info here. viewtopic.php?f=39&t=7210
I put a Tom Bradshaw supplied Hot Potz in my friend's pedal about 4 or 5 years back, and it still works perfectly.
Re: Replacement pot - Goodrich VP
Posted:
Mon Apr 24, 2017 6:35 pmby Nick Bidmade
Wow - thanks guys. I'll have to print this lot off and give it to Jim - too much for me to understand... doh!
BTW - I've got a couple of Allen Bradley pots but they're 250 (bits/bytes/ergs/whatever they're called) rather than 470/500. What's the difference?
Re: Replacement pot - Goodrich VP
Posted:
Mon Apr 24, 2017 6:55 pmby Ken Byng
Nick
250K pots will work. They must be log pots rather than linear pots.
Re the difference between 250K and 500K - From Guitar Electronics.
"Using higher value pots (500K) will give the guitar a brighter sound and lower value pots (250K) will give the guitar a slightly warmer sound. This is because higher value pots put less of a load on the pickup which prevents treble frequencies from "bleeding" to ground through the pot and being lost".
Re: Replacement pot - Goodrich VP
Posted:
Tue Apr 25, 2017 12:57 pmby Nick Bidmade
Thanks Ken. No idea if they are log or linear! Ho hum.