varying filter cap values?
I have Hammond AO44 chassis with a NOS EZ81 and a new filter cap/can (30-30-30-10) I'm looking at using this for the sparticus mod, but retaining the EZ81 rectifier/power supply. The sparticus mods...
View ArticleMcIntosh MC2100 question
Greetings, I just picked up a McIntosh MC2100 for an embarrassingly small amount of money. Obviously it is not in working order, it blows the 5amp fuse immediately upon plugging it in. My forte is...
View ArticleLoud cars
Loud cars are what the cops call amplified cars. Putting speakers in the trunk I refer to an amplified car-- a system designed not to listen in the driver's compartment but to produce a vibrating car...
View ArticleCathode Bypass Capacitor
Hi folks, I need some advice on choosing a make/model of cathode bypass cap. I need a 100uf 10-25v, preferably axial. Is there much reason to use anything other than a low impedance, high temperature,...
View ArticleWanting to MOD/overhaul my NAD3130
Hi guys from a newbie. I was hoping someone on here could possibly help with some advice and/or information on how i can best modify my 3130. The main thing i want to do is see if i can upgrade the...
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Amplificator Class A 2 X EL504
hello , i me stocked 2 tubes EL 504 for build amplificator 2 ways to EL504 . i research montage to single ended ( for use 2 ways ) ? i me research to Google.com , not good research completed to value...
View ArticlePci DAC ( julie@)
latest days i listen a lot from my PC have found this as a budget solution for better sound quality than the standard mini jack output ESI - Juli@ would you like to share an opinion for the specific...
View ArticleClass d amplifier rail capacitors
LOW ESR vs regular electrolytics. Not the main bulk storage in the PSU side but rather the smaller ones on the amp board next to the power fets. From a HF design standpoint low esr caps rated for smps...
View Articlehow does digital coax produce stereo?
how does a single coax cable into a DAC, with just a single core and ground, produce stereo out to an amp? please explain in layman's terms!!
View ArticleRH84 amp. Plate is 300V. What voltage...
should the screen be for best sound quality? I have a VB408 to regulate the screen to a particular voltage. Any ballpark figures? Or links to literature?
View ArticleCheckout double check.
Hi all, I've just been tackling the checkout procedures. With all the valves installed, speakers in place and powered up I'm getting a b+ of 459v. R17 and R27 are putting out 36v each. I went through...
View ArticleOttawa (ON) DIY meet April 13 & 14!
Hi everyone, A reminder that this weekend is the 4th Ottawa Valley meet for audio DIY. More details in the main thread: http://www.diyaudio.com/forums/clubs...er-2013-a.html >>> Please post...
View Articlebest place to by headphone amps ?
Looking for these amps for headphone amp Burr-Brown OPA637 and Ad8620 in the U.S.A ? Also came across 2 op opa637 amps the OPA637AP is list as having Common Mode Rejection Ratio (Min): 100 dB and...
View ArticleNew System Design
Ok, so this is one of, if not my first post here, I usually hang around DIYMobileAudio.com, as I am big into car audio and compete in sound quality competitions. I looked for the answers to my...
View ArticleTo put things into perspective - the BEST website ever!
just discovered one of the coolest websites ever. Have a look, enjoy;) http://htwins.net/scale2/
View ArticleCrackling noise.... pls help on Pre-amp
Hi there, Here is my setting HTPC - Tera dak - JP200 Clone (from analog metric) tube Pre-amp - B&K st-140 - Statement Speaker (from Jim and Curt Hotlz) Previuously i have a problem with the PS on...
View ArticleTransformer bubbling
I've built an ecl86 amp based on the babyhuey design. The amp has been running extremley hot after half hour. The area around the valves are untouchable without burn pains - as is the power transformer...
View Articlexa100.5 - enough power for my speakers?
I've come across a good deal on a pair of lightly used (sorry Mr. Pass, wish I could afford to buy new), xa100.5 monoblocks. I realize amps need to be matched to the speakers with regards to input...
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FS: Dynaco VTA M-125 Monoblocks. (8) KT-120 Power Tubes. LOW Hours
These were purchased 10 months ago from Bob Latino (tubes4hifi . com) The tubes have somewhere around 200-300 hours on them TOTAL..! I have recently built a pair of extremely high-efficiency speakers...
View ArticleAcoustat Spectra 1100 parts
I have a pair of Acoustat Spectra 1100's that I don't need anymore. The problem is that the 8" woofers of this hybrid design were damaged and unusable. There are suitable replacement drivers available...
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