I can find 10k and 20k but not 220 and 4.7k in Holco, Vishay-Dale or Resista. I can only find 221 and 4.75K 1% metal film high quality resistors. I have...
If you're going to buy an iron; buy one that will last. http://www.elexp.com/sdr_wlc1.htm (no endorsement of the distributor implied, it was just the first...
I gotta thank you for taking the photos of the wave form of the Edcore trannies... I have no idea what scale the voltage is on the photos... But what I would...
Well...if my tube based generator could generate a respectable square wave, I'd be able to put up a shot of the Jensens. Might try it just for grins anyway. ...
Chris
ck42@...
Apr 3, 2002 2:52 am
1032
dont have so much ring...maybe the Edcores are just a little more lossy... Chris, I will be waying with baited breath to see the Jensens.... My stuff from...
Hmmm....maybe I'll hook up a little 555 circuit to spit me out some square waves. I'm still trying to figure out what I'm going to do for a power supply ...
Chris
ck42@...
Apr 3, 2002 5:18 am
1034
Have heard a lot of good things about Cardas Rhodium RCA jacks. Has anybody tried them on DIO? Will they fit into existing holes with Teflon washers on? Also...
Did you notice the scope he was using, and what he said about its condition? Anyway, I'll use a calibrated one with some BW when testing the Edcors, when they...
Just HAD to go and get one too, eh!! lol...just kidding. Anyway, I'm just wanting to modify it so that instead of getting a +/- X Volts, I would just have it...
Chris
ck42@...
Apr 4, 2002 1:29 am
1038
Ran some quick tests on my Jensen's. I just ran a sweep from 1KHz, 10KHz, 20-90KHz sine waves thru it. It looked perfect as far as I could tell... Only anomaly...
Chris
ck42@...
Apr 4, 2002 2:11 am
1039
They will fit, no problem. I had some left over from another project. As far as comparisons go, I can't say they are any better or worse than the Vampires....
hi all, cut-n-pasted from a harmonicdiscord thread (search the user "dormant" to find it). =================================== My work on DI/O is finally...
Hi Doug, If the Jensens don't really start rolling off until over 100kHz, as Chris found, it's no wonder the guy found the "standard mods" sweeter sounding....
Running a square thru the Jensens definitely shows overshoot. Wave form really starts to look pretty nasty too as the frequency increases. Sorry, no pix. If...
Chris
ck42@...
Apr 5, 2002 2:47 am
1043
I have not heard the Jensen transformers but the present sound that I have with the DI/O is also "ever so sweet". Basically high frequency information and...
Got my shipment from Allied...mainly the Stancor Trannie... Yes this is good and getting better. Bass line is way better and the voices clean and clear but not...
Just some test info. Starting with 1Vpp input at 1KHz Amplitude rises with frequency until amplitude maxes out at about 115KHz (4Vpp) at which point the...
Chris
ck42@...
Apr 5, 2002 8:14 pm
1047
I would just like to ask for opinions on the next step I should consider. Currently I have a stancor PS, have jumpered the output caps, replaced the 100 ohm...
I haven't determined the exact vendor, but likely will be one of these. http://www.bdent.com/html/oscon.html http://www.capacitorsplus.com/ There may be more...
...and don't forget 20v 22uF SG Os-Cons and 1 25v 10uF SG Os-Con on the Digi Board...more space...these things are only 22 mm high and improved performance....
Hi Chris, The thing that strikes me first is that we have to adjust your test setup. Since your transformer is a 1:1 passive component, there shouldn't be much...
I'll give it a try and see if anything different happens. Chris...
Chris
ck42@...
Apr 6, 2002 4:59 am
1053
A minor thing, you should only need the load on the tran secondary, since it will be reflected in the primary anyway. I'm going to do the same test on the...
Well, I got my DIO and did the following mods: Swapped R23 with R24, R21 with R19, R17 with R13 and R16 with R18 This lowered the output gain to an acceptable...
Ok....reran some quick measurements with a DV 10K resistor. Made quite a difference ;) Here's what I've got now: Setup 1Vpp @1KHz @20KHz - 1.13Vpp (actually...
Chris
ck42@...
Apr 6, 2002 4:38 pm
1056
... From: "robert_kovalik" <rkovalik@...> To: <DIOmods@yahoogroups.com> Sent: Saturday, April 06, 2002 9:27 AM Subject: [DIOmods] DIO Help Please! ...
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