bicycle_man

Responses from bicycle_man

Rolled some 12ax7's recently...
Thanks Rodman! I have read good things about the Winged C el34's. The National el34's look nice, too. Great information!I use the 12ax7's in the pre-amp phono stage.Cheers! 
Rolled some 12ax7's recently...
I just spun two new records (both 180g vinyl) -- Rickie Lee Jones, Rickie Lee Jones and Pop Pop. Interesting result when I swapped out Bugle Boy and JJ 12ax7's.Background: I recently won a Denessen Soundtracktor on ebay and decided to align my car... 
Are contact treatments worth the money?
I have no doubt about the effectiveness of deoxit. It is great for cleaning contacts, especially those of potentiometers. Old pots more often than not need cleaning. Deoxit helps to eliminate oxidation, etc.I am glad to hear about sst filling in t... 
Are contact treatments worth the money?
The Walker treatment is organic; yahoo. (Cynical, yes.)Reminded me to re-read Norman Koren's page: http://www.normankoren.com/Audio/and his description, "Loose screws? Sometime in the late 1980's I visited an audiophile in San Diego. When he opene... 
Are contact treatments worth the money?
I am very sorry, Rushton. I mistook your post as a plug and did not read it carefully enough. Please accept my apologies.I agree to disagree. This is another audiophile topic that can go on endlessly in debate. I have stated my thoughts about it, ... 
Are contact treatments worth the money?
If audio (or electrical) connections did indeed provide optimal transmission: contact enhancers could not further affect one's music reproduction, but to degrade it, or have no effect on it at all. I think that would be more accurate.It's o.k. tho... 
Are contact treatments worth the money?
Rodman99999,I must say, however, that I still think that what happens at connections is relatively simple. If the connectors are corroded, clean them. If there is a mechanical problem with them making a connection, fix it so that they make a tight... 
Are contact treatments worth the money?
Well said, Rodman99999.I completely agree with your statement, "Testing is invariably done with relatively simple signals, generated by equipment that I'd never listen to on my system. Testing done, and empirical data collected by, listening to ac... 
Rolled some 12ax7's recently...
Just finished listening to 10Ms compared to Bugle Boys.Mmm...They are both detailed, clean, open, great with male and female vocals, lots of air, great timbre, dynamic, and involving. I would give a slight edge to the 10Ms overall for slightly mor... 
Are contact treatments worth the money?
Aball,No, science has not answered all the universe's question. You are correct. However, this is an engineering problem, not a philosophical one. Believe it or not, things to do with electricity or electronics fall into the realm of electrical en... 
Rolled some 12ax7's recently...
I agree, Nsgarch, that's a vey interesting article. I have often wondered about 5751's. I will keep my eyes open for some and try them.I was a bit surprised that I was not all that impressed by the Telefunkens, given their reputation. Oh well...Ch... 
DIY? How to get feet wet?
Hi,The St70 does require biasing adjustment. It is easy to do -- you just need a flathead screwdriver and a voltmeter (even the cheap portable one from radio shack will do).I have any original Dynakit St70, and the bias voltage drop is read from a... 
DIY? How to get feet wet?
Hi,Start with a kit that will result in a good sounding piece of equipment that you can live with for a while. E.g.: http://www.dynakitparts.com/store/product.aspx?id=2.This is for a Dynakit St70. There is a huge amount of information about it on ... 
Another Cable Burn-in Question
I absolutely agree! I thought of this after I posted; "how about passive pre-amps?" I think the current would flow through the interconnect into the pre-amp.Thanks for pointing that out! 
Another Cable Burn-in Question
About pre-amps being on or off during break-in: test it. Use an ammeter to see if current is flowing from your cd player to your pre-amp while your pre-amp is 1) on, and 2) off.My guess is that while off, the input impedance of the pre- is virtual...