Search found 13 matches

by AnalogJoe
Fri Jul 10, 2020 8:21 pm
Forum: The Peabody Lounge
Topic: I love modern technology
Replies: 35
Views: 954

Re: I love modern technology

I have seen a video, where the guy yanks SMC caps with pliers in a twisting move, but it is not clear wether the PCB pads survived. I am 99% sure, all this monitor needs is this one cap renewed. Are you refering to Mr. Carlson's Lab videos? He yanks the caps with some pliers. I remember I cringed w...
by AnalogJoe
Thu Jul 09, 2020 9:08 pm
Forum: The Peabody Lounge
Topic: I love modern technology
Replies: 35
Views: 954

Re: I love modern technology

The odds are your TV needs new caps. Yeap, I know, thats what I mentioned in my previous post. However, I am lazy, I will wait until it doesn't work at all to replace them. One has clearly a cap that vented, its top is cracked. Trouble is, this cap is SMC on a fragile board and I have never done su...
by AnalogJoe
Wed Jul 08, 2020 8:27 pm
Forum: The Peabody Lounge
Topic: I love modern technology
Replies: 35
Views: 954

Re: I love modern technology

I still have my 50" LG plasma TV from '09, its not a smart tv and at some point I considered changing it for a smart TV, that is until I found the Amazon Fire Stick, for $40 it turns your dumb tv into a smart tv. I just love the picture of plasma TVs, it doesn't look as pixelized or digitized as the...
by AnalogJoe
Wed Jul 01, 2020 7:51 pm
Forum: The Peabody Lounge
Topic: Entropy
Replies: 1136
Views: 416882

Re: Entropy

JR. wrote:
Fri Jun 26, 2020 10:00 am
replacement tact switches arrived this morning and mouse is already fixed.... 8-)

How much did you end up paying including shipping?
by AnalogJoe
Sat Jun 27, 2020 9:27 pm
Forum: The Peabody Lounge
Topic: "I Am A Google Deplorable" 855-290-0342
Replies: 57
Views: 13242

Re: "I Am A Google Deplorable" 855-290-0342

It's quite obvious that corporations, not governments rule the world, it wont be long until we are like 1984. There was a movie, can't remember the name, set in the future, were two companies ruled the world and wars were fought between these two companies, there were no longer countries, but territ...
by AnalogJoe
Wed Jun 03, 2020 5:55 pm
Forum: Pro Audio Design
Topic: Low Noise Transistors: Comparing the ZTX1053A and ZDT1053 (Dual) vs. the ZTX689B and ZTX851
Replies: 24
Views: 2176

Re: Low Noise Transistors: Comparing the ZTX1053A and ZDT1053 (Dual) vs. the ZTX689B and ZTX851

One of my objectives is to find higher-gain low noise transistors in the Zetex series that would serve well in mic preamp applications where the absolute lowest rbb' isn't necessarily required due to the higher source impedance. Fortunately there are quite a few. We're lucky we can use these power ...
by AnalogJoe
Wed Jun 03, 2020 5:50 pm
Forum: Test, Measurement and Repair
Topic: Classic Bead Tantalum Capacitor Failure
Replies: 17
Views: 4070

Re: Classic Bead Tantalum Capacitor Failure

Turns out I had already posted the correspondence with Bob Pease. You'll find the Tantalum measurements along with Bob's scrawled comments here: https://www.ka-electronics.com/images/pdf/Pease_Correspondence_2.pdf Wayne, those are real gems right there! I enjoyed reading that, thanks! I have an AP-...
by AnalogJoe
Tue Jun 02, 2020 11:40 am
Forum: Test, Measurement and Repair
Topic: Classic Bead Tantalum Capacitor Failure
Replies: 17
Views: 4070

Re: Classic Bead Tantalum Capacitor Failure

mediatechnology wrote:
Tue Jun 02, 2020 7:39 am

I have a THD plot of tantalum capacitors I did for the late Bob Pease that I should find and post.

That would be great !
by AnalogJoe
Tue Jun 02, 2020 7:17 am
Forum: Pro Audio Design
Topic: Low Noise Transistors: Comparing the ZTX1053A and ZDT1053 (Dual) vs. the ZTX689B and ZTX851
Replies: 24
Views: 2176

Re: Low Noise Transistors: Comparing the ZTX1053A and ZDT1053 (Dual) vs. the ZTX689B and ZTX851

You might want to check out this webpage http://www.dicks-website.eu/low_noise_amp_part3/part3.html they compare several transistors, apparently the ones with the lowest noise are the ZTX853 with a merely 1.62 Ohm of base spreading resistance, or 0.22 nV/rootHz. Your test setup seems to be better th...
by AnalogJoe
Mon Jun 01, 2020 1:54 pm
Forum: Test, Measurement and Repair
Topic: Classic Bead Tantalum Capacitor Failure
Replies: 17
Views: 4070

Re: Classic Bead Tantalum Capacitor Failure

I find todays electrolytics to be very impressive, for example, take a look at Panasonic FR series of capacitors, they are very low impedance and are rated 5000 to 10000 hrs at 105 °C, those caps will last a long time. Some electrolytics are crap thou, my LG Plasma TV refuses to turn on the first 2 ...