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In Reply to: RE: Vinyl Flat & Groovy Pouch, initial results posted by flood2 on July 15, 2020 at 14:24:06
Thanks for the input and tips Anthony.
I'm a little confused on the different Pouch models that are out there. My Groovy Pouch features only an on-off switch with no means of adjusting or setting temperature. I assume it's the latest and current design as I ordered it less than two weeks ago. As long as it works, I'm OK with it.
Using a meat thermometer probe sitting on the center of the top platten (has been on for over 1 hour), I'm getting a readout of 59C. Which seems about right. Lacking the means to fine tune the pouch heat output, this appears to be what I have to work with.
Follow Ups:
I couldn't initially use that thermometer because it automatically switched off after 10 minutes, so I purchased a new one which does not switch off automatically.
Sounds like there are now 3 variants!
The original pouch was similar to what you have probably except there was no switch - you just plugged in a 12V DC plug pack and relied on the tolerancing of the PTC element to control to a temperature. The temperature range due to tolerancing was quite wide. Yours is on the higher side of things - sticking the sensor on the top of the platten tells you the element temperature but it will take at least 2 hours for the vinyl disc to get to the required temperature - if you stick within a 4 hour heating window, you will be safe but I strongly advise caution on extending the time beyond 5 hours in Summer.
For potato chip warping, you will need several goes with various combinations of the full size mats and the rings (with the label area cut out) and swapping sides. If done in one hit or incorrectly, you can flatten the edge, but the warp becomes a ripple so your cartridge still jiggles up and down furiously! I've sacrificed more than a handful of discs to work out the best approach.
Since it is rare (in my experience) for new discs to be perfectly flat, I use the VinylFlat as a matter of course after cleaning a disc before it is played.
The Pouch I got last year plugs straight into mains - it is a modified version (no auto-off timer) similar to the Sunbeam heating pad with a 3 position switch for low, med, high. It is 12x24" with velcro strips on 3 edges so that you fold it in half to enclose the VinylFlat. The standard version in the link has an auto-off feature (that can be disabled by opening up the controller and disabling the link to the timer circuit) - the instructions are easily found on Google. DISCLAIMER: For anyone reading this, DO NOT attempt modification as it could result in an electrically unsafe product and may cause serious harm if done incorrectly!
Regards Anthony
"Beauty is Truth, Truth Beauty.." Keats
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