Electronics! Falling into the geek rabbit hole.

If those options fail check if you have any local saltwater / reef aquarium forums or fb groups. Having a DI filter is pretty much a must for that hobby and some kind sole might hook you up.

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Originally Posted by ghosthop

Woosh. Really fell down the rabbit hole. KSL has been a source of great deals and met some interesting folks.

I picked up a Fluke DMM and probe master modular probes after finding my cheap meter bit the dust.

Next was an Aixun JBC copy after reading around eevblog. I agree with basin about not supporting intellectual theft but it’s a hard pill to support a $500 machine that fundamentally hasn’t evolved for a decade plus. I have been using the genuine JBC tips. Will need to replace the Chinese caps in the power section and add ESD protection at some point. Will most likely modify the iron stand to pass power to the handle at the same time to clean up the cord routing.

Have started cleaning 40 years worth of crud and am going to do a full recap on the preamp. Regulated voltages are a little funky so will check semiconductors after replacing electrolytics. Hoping to build a diy pcb holder using photography third hand next week.

I have had good luck sourcing solvents so far except DI water. Grainger will sell me a liter for $30 but I am thinking about poking around the chemistry building at the U with a backpack and helpless look on my face. I forgot how nice it was to have free access to those sorts of things.

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What preamp are you working on?

Thanks all, I will pursue those leads.

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Originally Posted by basinbeater

What preamp are you working on?

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Mitsubishi branded Diatone DA P10. I always wanted to put the full stack together (pre/amp/meter/tuner) but prices have left reality.

That thing is cool looking. You have a matching amp that "docks" with the preamp? Cool design.

Alright, got a question for you wizards. I have a Polk PSW505 that is making no sound. Everything seems to be functional on it otherwise. I'm going to pull out the speaker, check connections, run a multimeter on the speaker to see fi it's blown, etc. But here's the question, which might save me a ton of time: I guess some caps on these can go bad. If caps started to go, would it be silent or just make weird noises? On my guitar amps when caps go the sound just gets weird, it doesn't go silent.

Just trying to eliminate caps as the issue up front.

Edit: speaker tests correctly through the multimeter. Fuse is not blown. Plate amp recognizes a signal being sent to it since it switches from standby to active when i connect music through rca jacks. Just no sound.

The volume is turned off?

excuse the mess, but I just got a new (to me) pair of cornwalls. traded my la Scala's for them.

i miss my la Scala's but I love these https://uploads.tapatalk-cdn.com/202...2b41d239fc.jpg

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I love my Klipsch Forte's and read up on your Cornwalls. Seems they said the Scala's had better bass response than the Cornwall's. Do you agree? I love the bass in my Forte's.

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Originally Posted by tgapp

excuse the mess, but I just got a new (to me) pair of cornwalls. traded my la Scala's for them.

i miss my la Scala's but I love these https://uploads.tapatalk-cdn.com/202...2b41d239fc.jpg

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That's 100% awesome. Enjoy!

Attachment 490522

The equivalent of shoving a paperclip in the starter relay. Sure enough, it works. I’m sitting here and that channel actually sounds better than the one with the 50 year old reed relay.

Is there any risk to a tech jong opening up a tv?

I got a used commercial grade tv last summer for outdoor patio use. Chanced it and left it out over winter. In the spring when I tested it it was working fine, but now won't power on. I've read that this model has three fuses inside I can check (that's about the limit of my trouble shooting skills here) so I'd like to check those before moving on.

IIRC old tube tv's have capacitors that can shock you, just curious if modern flat screen tv's carry any risk.

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Originally Posted by Thaleia

Is there any risk to a tech jong opening up a tv?

I got a used commercial grade tv last summer for outdoor patio use. Chanced it and left it out over winter. In the spring when I tested it it was working fine, but now won't power on. I've read that this model has three fuses inside I can check (that's about the limit of my trouble shooting skills here) so I'd like to check those before moving on.

IIRC old tube tv's have capacitors that can shock you, just curious if modern flat screen tv's carry any risk.

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There might be some really small capacitors in there, but there really is no risk. It's all really low voltage/low capacitance capacitors.

I'm mostly a tech Jong but I opened up one of our newer flat screens and was able to fix an issue that mostly involved a design flaw that crimped a ribbon cable(?) and it was super simple.

Also just as a random data point I have been using a regular flat-screen as an outside TV for 3 years and haven't had any issues except I don't use it if it's colder than -10F. I also planned on just throwing a blanket over it for super cold snaps( we've had multiple weeks around -20 to -30F) but never did. It is under a covered patio but not closed in. I'm in MT and figured I already had the TV so why not.

Good luck.

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same on outside tv under covered porch.

they are disposible. the ones that are specially designed for outdoor use are stupid expensive. I will cycle through cheap ones from FB marketplace.

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Originally Posted by Thaleia

Is there any risk to a tech jong opening up a tv?

I got a used commercial grade tv last summer for outdoor patio use. Chanced it and left it out over winter. In the spring when I tested it it was working fine, but now won't power on. I've read that this model has three fuses inside I can check (that's about the limit of my trouble shooting skills here) so I'd like to check those before moving on.

IIRC old tube tv's have capacitors that can shock you, just curious if modern flat screen tv's carry any risk.

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You couldn't have just picked it up and put it; n the garage?

Hey thanks guys, will rip into this in the next day or two.

Love the patio tv. Baseball or grand cycling tours on a hot summer afternoon or evening on the patio is quite a vibe. Haven't done a movie night yet but I'm sure that's pretty sublime as well.