jea48

Responses from jea48

Receptacle Cover Plates & ISOCLEAN Alternatives?
(they are all off pigtails)AdamlauWhat wiring method was used for making up the pigtailed joint/s?Example,Wires twisted together then soldered and taped?Cheap plastic wire connectors? Wires twisted together or wires just group butted under the wir... 
Removing tube from EE Minimax Dac
The area the tube is in looks rather small especially if you have big hands.I ran across this thing doing a search on Google. I know beans about it.....>https://www.fairradio.com/catalog.php?mode=viewitem&item=5164:6539 Says it is sold out,... 
Removing tube from EE Minimax Dac
Looking at the picture I assume you have removed the shield that surrounds the tube and the tube is exposed.While pulling outward on the tube gently move the tube ever so slightly side to side as pulling the tube out of the socket.>http://www.d... 
How Much DC is OK on a Power Line?
Ralph,I am not dismissing what you are saying about odd harmonics. They can and do play havoc on AC power systems.They can cause the secondaries of power distribution transformers to run hotter than normal. And yes be mechanically noisier than nor... 
How Much DC is OK on a Power Line?
What does one AC line conductor, (neutral conductor), of the electrical service intentionally connected to earth have to do with it. The main reasons for connecting the service neutral conductor to earth is for lightning protection and to establis... 
How Much DC is OK on a Power Line?
Not sure what a center-tap on the primary would have to do with DC voltage on the mains.Nelson Pass The one and only If you are experiencing mechanical hum from yourtransformer, it is often caused by the presence ofDC on the line. Usually this com... 
HELP.. power problems
I however, must solve this at some point because my equipment is too expensive to allow it to continue.12-06-11: JprinzHire a good commercial/industrial service electrician to check out the problem. Show him my check list, previous post.. 
Audio Research VT200 Biasing Schematic ETC.
Dischief,Not sure about the VT200 but the biasing of a VT100 mark 1&2 can be a bear if changing the small signal tubes along with the power tubes.If done improperly the new tubes and or the amp could be damaged. My understanding changing the p... 
Can i leave my HK 3480 preout not connected?
Yes. 
HELP.. power problems
I think Ericjcabrera is on the right track. A poor contact connection can cause arcing and arcing will cause RFI/EMI on the mains as well as airborne.Problem could be poor contact pressure of cheap residential grade receptacles as Ericjcabrera sai... 
Amp Hum
Recently, I've noticed a significant hum coming through the mid's on my speakers.Key word recently..... "On my speakers" indicates both right and left channels. Could be a bad electrolytic capacitor/s in the power supply of the amp or preamp.If yo... 
Grounded Power Cord for Turntable - why not??
I understand the concern on creating a ground loop and in fact I have floated the ground on my other sources; but I never thought to float it at the device side. 11-13-11: AigengaJust to be clear here I am not talking about floating the safety equ... 
Grounded Power Cord for Turntable - why not??
The reason I want to change the lamp-cord to a shielded, high quality cord is to both give the TT cleaner power and to prevent emi from leaking out of the cord into the myriad of signal carriers that surround it.What you describe above would not g... 
Slight Tube 'Whistle' - Help?
Hi. Thanks the preamp is the new CJ GAT. 11-13-11: Lloydelee21I would contact Conrad Johnson... 
Chasing 60 hz hum
11-10-11: KirkusActually I've experienced at least as many grounding-related problems with "double-insulated" equipment as those with safety grounds. This is because they still have leakage reactances in their power transformers, and thus AC-relat...