Testing the TK Tar Baby

[MileHigh]

TK:

OMG, that's the big beautiful beefy analog FG that we were admiring about two-three months ago?  That's a shame.

I assume that the output section is just a big beefy operational amplifier.  It's probably got some big T05 NPN and PNP transistors in the output section.  That's where I would look first.

From what I understand, T05 transistors are becoming a rare breed and they can get expensive.  It's funny because they were the workhorses of a generation.  There is school of thought that says that 1970s audio gear is the real thing because of those parts.  Nothing better than a GIANT HEATSINK on a 70s amp with a row of T05 transistors!  Plus a transformer that weighs as much as a concrete cinder block.

MileHigh

[MileHigh]

On the nerd side of things, I know TK plays around with PCs and makes Ubuntu boxes and stuff like that.

Well, I am finishing off building an AMD 3.6 GHz 8-core (count 'em) 16-gig-RAM monster computer!  OMG, what a machine!  USB 3.0, SATA3!  Sorry, TK, but it's running Win7 64-bit.

I haven't built a computer in about three years, which is a long time in computer time.  You will be able to run 10 applications at the same time including all sorts of Flash games and other crap and this computer should slice though it all like a white hot knife through butter!

It's so damn fast that I am assuming that after about six months the computer will not get sluggish.  The software itself will get sluggish, but you won't perceive it because the computer is so damn fast!

It's been running Prime95 for 12 hours without a hiccup.  It's a build for a friend and I am not bothering to overclock it.  There is no point.  It's whisper quiet under normal operation.

Okay, back to the never ending story.

MileHigh

[Rosemary Ainslie]

Hi Guys,

It's a work in progress but the new forum is now up and running.  Energy and Shifting Paradigms.  Here's the link.

http://www.energy-shiftingparadigms.com/index.php/topic,3.0.html#lastPost

I'll be dealing with the protocols to the proposed tests that we're going to be showing live.  All are welcome - with the obvious exception of TK - Picowatt & FTC and sundry other trolls.  That's just to ensure that we keep things topical.

Kind regards,
Rosemary

[fuzzytomcat]

Hi Guys,

It's a work in progress but the new forum is now up and running.  Energy and Shifting Paradigms.  Here's the link.

I'll be dealing with the protocols to the proposed tests that we're going to be showing live.  All are welcome - with the obvious exception of TK - Picowatt & FTC and sundry other trolls.  That's just to ensure that we keep things topical.

Kind regards,
Rosemary

YA ..... RIGHT 

Like I want to be a member somewhere that my IP address is available to the biggest "SHIL" and "FRAUD" in the history of the open source community.

So all you other members and guests thinking about going to this new cave of Rosemary's, just remember your IP address leads to your home address area and just logging onto Rosemary's new "MANAGED" JooJooBerry ( http://www.joojooberry.co.za/ ) forum, gives up that information and you don't even get a cookie for your troubles. 

FTC


Post Script -
A example of no tracking cookie and IP address exposed just by going there .... http://whatismyipaddress.com/ .... enjoy 

[TinselKoala]

@.99: I was just fooling around, using the FG to drive the Tar Baby at 356 kHz, about, and using my new Tesla resonator's primary as the load, using a bipolar square wave, and 72 volt battery pack for Tar Baby. I wasn't paying attention to the waveforms, nor did I have the thermocouple on "6" (the Q1) hooked up to the meter. Clearly it got a bit too warm. The weird thing is that the 10 amp fuse inline at the battery positive didn't blow.

@MH: Yes, you are right about the output stage, but it doesn't have 3055s or other TO-5 transistors.... it uses these weird little 10 Watt transistors in two complimentary pairs: MPSU06 and MPSU56. They are in a little tabbed case called "152" which is like a half-sized TO-220.

I'd like to sub these out for more easily obtainable ones; there is plenty of room for a different case; TO220s would fit.
I see there are a few places that list these but they are really expensive. They cross to ECG/NTE 188 and 189, but there are probably some other subs if the case is allowed to vary from the "152" case.

One of them is definitely shorted, another I broke a lead off of when removing it for testing, another is probably open. I'd like to replace all four, but if I order the exact replacements it will cost me around 80 dollars, so I'm definitely interested in subbing these out.


Any ideas for subbing these transistors?