swt61 Posted July 27, 2011 Report Share Posted July 27, 2011 (edited) ^ Enhances, lubricates and protects...that stuff would sell like hotcakes in the Castro! Edited July 27, 2011 by swt61 Quote Link to comment Share on other sites More sharing options...
nattonrice Posted July 29, 2011 Report Share Posted July 29, 2011 Bahaha The little pen version of that is great for small tubes. I'd never seen deoxit in a spray bottle though! Quote Link to comment Share on other sites More sharing options...
wink Posted August 1, 2011 Report Share Posted August 1, 2011 "I'd never seen deoxit in a spray bottle though! " Jaycar and Element 14 (Farnell ) sell it... Quote Link to comment Share on other sites More sharing options...
nattonrice Posted August 1, 2011 Report Share Posted August 1, 2011 Really??? My Jaycar mustn't have had it in-stock. Quote Link to comment Share on other sites More sharing options...
wink Posted August 1, 2011 Report Share Posted August 1, 2011 DEOXIT PROGOLD CONTACT CLEANER & REJUVENATOR - AEROSOL Simple cleaners wash away dirt, grime, and dust from your expensive equipment but are often ineffective at cleaning tough oxidation and metal sulfide ... more... QTY 1+ $24.95 4+ $22.35 10+ $19.70 Enter Quantity From Jaycar Quote Link to comment Share on other sites More sharing options...
manaox2 Posted August 2, 2011 Report Share Posted August 2, 2011 I bought mine from parts-express I believe. Quote Link to comment Share on other sites More sharing options...
Horio Posted August 3, 2011 Report Share Posted August 3, 2011 (edited) Anyone else get their shipping notifications from OnlineComponents for their RK50? I got mine last night, and I still can't believe I bought a $600 pot. My credit card has been screaming for mercy lately... =) Edited August 3, 2011 by Horio Quote Link to comment Share on other sites More sharing options...
deepak Posted August 3, 2011 Report Share Posted August 3, 2011 Anyone else get their shipping notifications from OnlineComponents for their RK50? I got mine last night, and I still can't believe I bought a $600 pot. My credit card has been screaming for mercy lately... =) Nothing here. But I ordered a month after you did, fingers crossed! Quote Link to comment Share on other sites More sharing options...
ujamerstand Posted August 3, 2011 Report Share Posted August 3, 2011 Nothing here. But I ordered a month after you did, fingers crossed! I think you ordered about the same time as I did. Just got my shipping notice last night, so it shouldn't be too long for yours to be shipped. I'm seriously not looking forward to the custom fees on this one... Quote Link to comment Share on other sites More sharing options...
ujamerstand Posted August 5, 2011 Report Share Posted August 5, 2011 So, I bought some C3675 and A1486 from utsource, after seeing that they have it in stock in cheaper prices than bdent, and that this particular distributor seem legit from comments on diya. I initially thought that all of these are fakes because of the uneven epoxy coating on the back side of the a1486 part; but measuring them gives me a minimum hFe of 30, a maximum of 67, while most of them have a reading about 60. Similarly, most of the C3675 I got have a hFe reading around 58-71. So both of these devices are within tolerance. Are there any reasons why I should not be using these devices? Quote Link to comment Share on other sites More sharing options...
luvdunhill Posted August 5, 2011 Report Share Posted August 5, 2011 (edited) You cannot really tell from that setup. You need to measure them at their rated voltages and a more realistic base current. Edited August 5, 2011 by luvdunhill Quote Link to comment Share on other sites More sharing options...
ujamerstand Posted August 5, 2011 Report Share Posted August 5, 2011 arg. I guess I will have to build a KGSSHV supply for this purpose? Quote Link to comment Share on other sites More sharing options...
luvdunhill Posted August 5, 2011 Report Share Posted August 5, 2011 Yeah, I don't know what to say. I haven't had to deal with authenticating these parts, as every single part I have came from an authorized Renesas dealer with original packaging. One just has to be prepared to pay in bulk. Quote Link to comment Share on other sites More sharing options...
ujamerstand Posted August 5, 2011 Report Share Posted August 5, 2011 I would definitely buy in bulk. Leaves me with some extras anyways. Did you contact Sanyo for authorized distributors in North America? Quote Link to comment Share on other sites More sharing options...
Lil Knight Posted August 8, 2011 Report Share Posted August 8, 2011 I'm wondering how hot the PSU runs. Going to have the top panel made, right now I only have 2 vent rows at the back, on top of the transformers. Would that be adequate or should I need more venting? The bottom panel also 2 vent columns, not rows though. The panel is 5mm thick, btw. Quote Link to comment Share on other sites More sharing options...
Kerry Posted August 8, 2011 Report Share Posted August 8, 2011 The power supply pass FETs will give off quite a bit of heat. Also the current sources feeding the zener strings and battery will give off a bit heat. The active battery and resistors will generate a small amount of heat as well. Basically you need to make sure there is venting above the PS especially the pass FETs. I've found that having additional venting in the top panel (not just over the hottest parts) will help as well. As far as the bottom goes, it is a good idea to make sure there is enough venting to allow for good air flow. I'm not sure from your description above, but it sounds like you could use some more. I don't remember which version of the amp you are building and was curious what the 4 large rectangular cut-outs are. Quote Link to comment Share on other sites More sharing options...
Lil Knight Posted August 8, 2011 Report Share Posted August 8, 2011 Thanks, Kerry. I'll add some more vent holes then. 4 vent columns should be fine, I guess. The 4 rectangular cut-outs are just bling factor... Quote Link to comment Share on other sites More sharing options...
Kerry Posted August 8, 2011 Report Share Posted August 8, 2011 Very nice and simple to build Quote Link to comment Share on other sites More sharing options...
ujamerstand Posted August 8, 2011 Report Share Posted August 8, 2011 That's a slick design! Looks like you were able to pull it off nicely. Quote Link to comment Share on other sites More sharing options...
livewire Posted August 8, 2011 Report Share Posted August 8, 2011 I like it! Quote Link to comment Share on other sites More sharing options...
El_Doug Posted August 8, 2011 Report Share Posted August 8, 2011 that looks so lovely!!! really really classy Quote Link to comment Share on other sites More sharing options...
pedefede Posted August 9, 2011 Report Share Posted August 9, 2011 (edited) Returned from hollidays, and today i finished the powersupply My LM7912 also gave -15V like Gilmore ... but actually a spare TS7912 worked instead I also had quite some trouble with the +250 rail (i gave only 90V). After some searching, it turned out that i switched the direction on the zener on the FET. Luckily i didnt fry any other parts, so now its working Readings: +576 +496 +246 -260 -495 -557 +11,87 -12,07 Now on, to quite a lot of wire-work .... Edited August 9, 2011 by pedefede Quote Link to comment Share on other sites More sharing options...
Kerry Posted August 9, 2011 Report Share Posted August 9, 2011 Nice job! The wire work aways seems bad, but it moves pretty quickly. Quote Link to comment Share on other sites More sharing options...
kevin gilmore Posted August 10, 2011 Report Share Posted August 10, 2011 (edited) red mallee knob in progress http://gilmore.chem.northwestern.edu/rmallee1.jpg http://gilmore.chem.northwestern.edu/rmallee2.jpg http://gilmore.chem.northwestern.edu/rmallee3.jpg Edited August 10, 2011 by kevin gilmore Quote Link to comment Share on other sites More sharing options...
Horio Posted August 11, 2011 Report Share Posted August 11, 2011 Damn thats purdy. How do I get myself one of those... Quote Link to comment Share on other sites More sharing options...
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