JohnW

It read .692 on both leads. Will test load across R9 next. Thanks again.

I did replace the resistor and the proper fuse, and the resistor blew again.

Yes, but it was only a .3v diode drop on both pins—reading went from 1.0 to .692

Thanks, and how do I determine which pin is the "base pin?"

Any tips on how to "check the transistor base-emitter and collector-base?" I have no idea what that means.

Sirba tests good. Will know more when the proper fuse and resistor arrive tomorrow.

Sirba tests good.

That Sirba diode has four leads. Not sure how to test it.

Here’s the front side of Rectifier A board. Those solder points look a bit crispy. Pic 2 is the other side. I’ve no idea what I’m looking at, but a used Rectifier A board is $29.99 on EBay.

Thank you, will do. I checked everything on Rectifier Board A last night for shorts, and they were all good. But obviously they weren't shorted, because current is obviously passing through them. I'm a novice at this sort of thing. Appreciate the help.

Yes Dave, I know that. Can anyone identify the resistor? Is that 8.5 watts?

So I bought this receiver for $200, and it was DOA. Seller assured me it worked when he sent it and I believed him. So I removed the top and bottom covers and found all the fuses. One of them, FU1 (from the wiring diagram) a .5A fuse, was nonconductive. Aha! I didn't have a .5A fuse, but I did have a 1A fuse. Popped it in, and it worked! And then the resistor (R9) connected to the fuse started smoking. And then the the sound cut out again. Yes, I feel like a bit of a dumbass. .5A fuses have been ordered. And I'd love to buy a replacement resistor, but I cannot, for the life of me, identify what it is. I found it on the wiring diagram in the 430 service manual, but it's pretty much unreadable (see attached screen cap). I can't locate the resistor in the parts list nor in the schematics. But I am not terribly experienced readin schematics. Could someone please identify the resistor so I can get one, install it, and pick up where I left off? Thanks in advance.

This is exactly what I use: https://www.ebay.com/itm/SPECIALTY-AV-2-Amplifiers-Receivers-to-1-Pair-Speakers-Selector-Switch-Combiner-/224545913401?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l49286&mkrid=711-127632-2357-0

I’m located in San Diego. Thanks.

The new versions of Heritage are superlative…and priced that way.

I can't speak to the modern versions of the LS and the CWIV...but having just switched from a pair of '85 Cornwalls to a pair of '85 La Scalas, I can attest to the difference in bass. I had high expectations, and I have to say, I was not blown away. Don't get me wrong--they sound amazing...more detail than the CWs, tighter bass (but not as deep). What this makes me realize, is just how special the CWs really are, that they're not that different from the La Scalas in quality--and this is the conclusion that seems to be drawn between their contemporary iterations as well: You trade maybe 10% in detail for a lower octave or two of bass.

But screw it I did buy the Dayton Audio caps just to see what happens while I save up for some real crossovers.

Way ahead of you. bought a nice 2'x4' piece of birch plywood and a few different finishes last weekend. I'll start tomorrow. Currently leaning toward amber shellac, or possibly multiple coats of Danish Oil. Staining isn't out of the question, but doing it well on baltic birch is a multi-step process, and I'm not entirely partial to a nice stain job with exposed plywood edges. There's some figuring in the speaker wood...and I'm tempted to dye it to bring that out and then seal with poly or acrylic. But that's a bit risky...I don't have any real wood finishing experience. I keep going back to this video:

Good idea.

I have no idea what to make of these networks. Ay ideas?

Actually I use the Watco rejeuvenating oil, but that's not far from BL oil either.

I'm in exactly the same position. '85s with ALs. need a recap. Don't need to buy 20 caps.

I think I read that after I got my Cornwalls. I did the boiled linseed oil with them, but they're the Oiled Walnut finish. Once a year I use Watco on them now.

How many coats?

Hm. Just bought a pair of '85 La Scalas (AL crossover, K-77/K-55M) to replace my recapped (Crites) '85 Cornwalls. Not unhappy with the Cornwalls, just thought I was upgrading. Not an upgrade, apparently. Just different. a little more detail in the mids and highs, and the lack of bass is well, apparent. Same sub I was using with my Cornwalls. I just switched out the two fronts and re-ran room correction. Played around with toe-in. I don't mind the sound difference. What I was hoping for was more presence and imaging...thought it would sound more like I was in the same room with the performers. But the soundstage with the La Scalas make them sound a bit further away. Not much...but I was hoping the imaging would bring them in another direction, ie, closer. But I just made the switch. I'll give it time. A recap may be in order, but not for ALs. I'll either convert them to AAs or AL3s...could use some guidance on that--what works best with the K77/K55M combo. I'm certainly not lacking in high end at the moment. High quality problem, right?