Rabco SL-8E Linear Tonearm
In the old days the 60s and 70s, the Rabco was considered one of the best tonearms ever made. My Rabco is gone. I had my turntable and the Rabco shipped to me when I moved and both were damaged. That's...
View Articlenewguy here
great forum...lots of info...looking forward to using it. already purchased the DVD from Perry Babin.. just need time to read it..thanks Perry reststop
View ArticleHelp: Driver Stage Design
I want to build a two stage SE amp. Let's say GM-70 as output and WE 437A as driver. I will use interstage transformer. I understand that the driver needs to have good linearity, good output voltage...
View ArticleBuffalo III-SE For Sale *NEW*
Hi, I have a NEW Buffalo III-SE package for sale. It includes: Trident regulators x3 TP Toslink to SPDIF adapter PCB Professionally soldered UF.L connectors, and all header pins Tested, 100%...
View ArticleClik here to view.
Can you advise me on a repair, please?
Hello all, I have acquired a Pioneer VSA-730 surround amplifier. I give it power and it lights up, and changes source etc, But I get no sound. It has a main heat sink with Output Transistors mounted to...
View ArticleHello from Tucson, AZ.
I've only recently gotten in to DIY. I'm mostly a headphone modder, and repairwoman. I do things like recables, driver transplants, etc. It piqued my curiosity to expand my electrical knowledge, and...
View ArticleSeparate supply for input/driver
I am trying to finalise a design of a two stage P-P el84 amp. For a brief description, there's an input transformer with a center tapped secondary that performs the phase splitting that is then...
View Articlechip amp for low efficient speakers
Hey everyone i have been googling and searching this forum also planning to build ny first amp i was gonna build a lm3875 but i realised that my speakers will not suit these amps being low efficient...
View Article4-channel 20dB gain stage with unbal inputs and unbal+bal outputs: Any Interest?
This is a project that is evolving out of a need for a gain stage after a popular DSP crossover. Summary: 4-ch 20dB gain stage "kit". I develop and MFG the PCB, but will be happy to post circuit as...
View ArticleTD-125 Armboard Sizing?
What are the exact width and length for the armboard of a standard Thorens TD-125? I am building a plinth for a TD-150 and would like it to accommodate a larger armboard.
View ArticleClik here to view.
Just for interest..
:confused: Regards M. Gregg Attached Images Long y.jpg (31.7 KB) Co pilot.jpg (10.0 KB) F&C.jpg (25.1 KB)
View ArticleHammond 307A Audio Transformer
I have an older (1970's) Hammond 307A and I'd like to build an audio splitter similar to the Jenson that uses a JT-11P-1. Does anyone know the wiring configuration for the 307A? I've written Hammond...
View ArticleClik here to view.
Speed problems (BIX)
Hello fellow DIY'ers. I have a BIX turntable were the speed is impossible to keep at 33 1/3. It seems like the speed is always increasing. Anyone have any experience with this problem? I'm suspecting...
View ArticleClik here to view.
SUPEX AL-2 Tonearm lift repair
Hi all I have to repair a Supex AL-2 tonearm lift and after some googling I believe I should start by filling the piston area with silicon fluid... My question is: What viscosity should I look for ?...
View ArticleAD1862 digital supply voltage
Hi. I've been looking the datasheet of AD1862 and the digital supply can accept voltages that range from +-5v to +-12v. Does anyone know if there is any performance benefit feeding +-12v to digital...
View Articledo I need a cathode follower?
Hi, I built this schematic for guitar preamp EF86 for any amplifier I use it as a preamp to high Z input of an audio card. The point is that it sounds pretty dull. No chime at all.. Muddy, bassy sound,...
View ArticleWhat makes an R-2R DAC nonmonotonic?
So, after noticing that few DAC manufacturers supply even the nominal output resistance of so-called current output DACs, and as well remarking on other threads that various I-V converters will have...
View ArticleClik here to view.
24khz from the average amplifier?
I want to reproduce (inaudible) 20k+ .wav files through a partsexpress piezo horn. For example ... GRS PZ1016 2" x 5" Piezo Horn Tweeter Similar to KSN1016A 292-440 I've got a few amps sitting around...
View ArticleClik here to view.
24khz from the average amplifier?
I want to reproduce (inaudible) 20k+ .wav files through a partsexpress piezo horn for example GRS PZ1016 2" x 5" Piezo Horn Tweeter Similar to KSN1016A 292-440 I've got a few amps sitting around...
View ArticleClik here to view.
Audio Precision System Two - 2322
I have a used Audio Precision System Two for sale. It is in fully working order and includes everything you need to start testing with it. Included is a small fanless Windows 98 server and APIB-LPT...
View Article