solder

What the heck is she building?

I'm learning as I go with a 6160 receiver and want to test parts on the pre-amp board (I've got one weak channel and hissing). This board sits vertically and has long pins/leads off the board which go to the underside. The wires attached to each of these pins looks like it is just tightly...

Hey guys, how are you? I got a Weller Wtcpt and it is not turning on or heating up. When plugged into the power source it does not do anything at all but it's been years since i used it. I am not an expert, could it be related to a bad-fuse problem? What are your thoughts?. Can you show me how...

I recently purchased Troubleshooting & Repair Audio Equipment by Homer Davidson (3rd edition), in the Section Soldering Techniques he explains that the temperature of the iron should be under 400 degree F. I have tried experimenting with this lower temp and it seems rather marginal. I use...

This is my very first tube build ever. And I can't believe I did it!! I'm only 22 years old, so I'm very young and new to this Tube design thing. I have learned so mutch and now I'm addicted.... Now I can say without a doubt in my mind that my scratch built 6L6 Push Pull Stereo Tube Amplifier...

I was trying to remove a cartridge from a Panasonic SL H203 and when unplugging the wires i went too far on the blue one it snapped, is there a way to fix it? I'm okay with soldering, I have a multimeter and have like 30$ budget. The wires can be accessed from the bottom of the counterweight...

Hello all, hope you had a good holiday and that your new year goes well. Ok, so I'm currently working on my Technics SL-1400 MK1 that I've had for many years. Unfortunately, several years ago I thought it would be a good idea to try to 'self ground' the turntable. Looking at my handy work from...

So, I have a vintage receiver that would occasionally go into protection mode, and I narrowed the issue down to the two voltage regulator transistors in the power supply. They both had cracked solder joints. Strangely, all of their solder pads seemed wiggly and loose, but I got them to stick...

Edit w/ answer: YES and my big Weller does it way faster than my smaller Hakko I got away in my previous Magnepan repairs never to have to solder Aluminum, but those days are over. I have an MG-IIa with new wires glued on them which refuse to allow themselves to be soldered into place. I have...

Hello, I've been lurking quite a while and decided to tackle a recap of my TU-217 (that I just picked up) with help from the FM Tuner Info website and various threads here on AK. First of all, thanks to this community! Normally I'd search the forum but this concern is specific to my board. I...

I am relatively new to the whole vintage audio gear thing. Been perusing threads here for a year with much benefit and this is my first post! Anyway, here is my issue: A month ago, I found an EPI 90 single speaker at the local thrift for $3. I bought it, for no good reason, and replaced the...

Strong 50Hz (mains) Hum with Harmonics coming from Right Channel Only by NicholasD posted Jul 20, 2018 at 12:53 PM So I have this old(ish) AKAI AM-35 AMP that I am quite fond of & there is a solid 50Hz HUM coming from the Right Channel of it. This occurs with no inputs connected. So...

Just finished getting this TA-2A back in action for my brother. When it was on, it would work great! But sometimes randomly it would shut off! Then other times it would halfway power on, lights would come on but nobody home. Sometimes I would push the power button, and it would remain...

I recently got a pair of Dahlquist DQ-10s that hadn't been used in decades and decided to do a bit of refurbishing. I refoamed the subwoofers without trouble. Next, I was told to replace the blue 80 uF electrolytic cap (to the subwoofer) in the crossover. Got two 80 uF 100 V matching caps and...

Hello everyone. I am new to AudioKarma and though I have some experience I am full of questions and I may, from time to time have some answers to share with like minded people. I thought I would start with a couple questions and hopefully some really great ideas will come my way. Like many of...

Test

Ok so I have been doing a lot of soldering but am still pretty new to it. I've recapped a couple receivers, many speakers, etc., but the solder always seems to melt and come off easily. Not the case here. I'm hoping you don't mind helping an amateur overcome this soldering obstacle ... I am...

I have a Weller EC2000 soldering station which has begun to misbehave. I opened the unit up and the switch shown on the left (back side visible) fell out. The switch swaps the display between set point and actual temperature. Obviously it has broken from its solder pads. It is a surface mount...

"Investigators said the soldering on the Rudder Travel Limiter system – which helps control the rudder’s movement – was cracked, leading it to send repeated warning systems to the pilots." "The cracked solder joint had malfunctioned repeatedly, including four times during the flight, and 23...