Tore down the AU-517 once again, to get at the Power & Protection circuit. I made a mistake in replacing the 10D7C silicon diodes and hoping this fixes the relay issue.
I am pleased to announce that some of my picks for the 2nd round of capacitors, have been posted on Ebay and can be found right here. This includes more MiniWatt capacitors, including a glorious looking 0.47uF 400V plus a really nice 0.15uF 160V model. I have more MiniWatts to post, so just keep an […]
HL Component Catalogs Catalogs and Data books Added: 200+Number of Brands: 45 I finally found the time and had all the pieces together again, to be able to share a lot of my vintage catalogs, handbooks and more! I hope that this helps some people find what they are looking for. A couple of years […]
You can find the complete C-2 page here. Capacitors Used Include: ELNA SILMIC-II/SILMIC-II ARS/ToneRex, Nichicon Muse/Muse-ES/Fine Gold/FW and a Siemens/EPCOS 1uF MKP output capacitor. Previous Mod: 16V Zener Diode Mod to allow Modern Discrete Op-Amps from Burson Audio.
The first part of my Sansui AU-517/717 restore guide, from recapping to finding those pesky shorted diodes. Not to mention how daunting it is just to remove and then rewire all the PCB’s! Here I hope to help shed some light on the subject.
I want to introduce the latest release of vintage parts from Hallman Labs, the ultra-rare MiniWatt Mullard/Philips Mustard capacitor. I’ve never before seen these capacitors prior to my acquisition of a large lot of Mullard/Philips capacitors, both NOS and used. When I began to sort through this pristine lot of capacitors, my jaw dropped […]
I decided to go ahead and publish what I had ready in a blog post until it is ready for its own page. The AA-51 is what is holding me up on publishing my findings in the BlackGate™ Article! Some of the requirements for calibration aren’t easy and I’m having issues with getting the unit […]
It is easy to miss a new site page being added and this being such an important page I wanted to make everyone aware of it who wants to know. You can find the vintage store at the header with the other sections or directly at this link: https://hallmanlabs.com/vintage-parts-store/ Thanks for checking out […]
Update: 8/3/18 – Master Parts Sheet #1 is now completed and I can continue to post remaining ads on Ebay. Some of the best lots are still to come so keep an eye out if interested! I know I haven’t posted in a good bit, but rest assured I am working on multiple projects. […]
Don’t see this very often, even in classes they didn’t have one of these that had cracked the wax. First two pictures are with a 50mm lens. I noticed the wax had broken in a circle around the end and if I could pull the end right off, the solder was already broken and […]