Recent content by myphone

Xulungmrs closed store at end the of May. I ordered some parts early last month. She mentioned store closing. Last order taken day was May 18.

I have replaced all resistors and capacitors in the signal path: Texas Instrument TX2575 naked resistors at volume control (shunt) and between 6SN7/6AS7; Vcap cuTF capacitors before 6SN7, and film capacitors at output (replacing the large electrolytic capacitors). As Deleeh stated, replacing...

I use PS audio Stellar PowerPlant P3. P3 makes significant improvement over isolation transformer.

How old is the amp? How many hours on tubes? Thanks.

Mordy, that is really cool.

The same seller sold 3 sets of Bendix 6080 on March 01 (I did not bid high as i have plenty): 4 labeled as Bendix 6080 sold for $352; 10 labeled as Tung-sol (5 are Bendix graphic column) sold for $ 177; and 5 labeled as Chatham 6080 (all Bendix graphic column) sold for $ 265. Key is to know...

Impression of parts change (instead of using the word "mod") in an early production Euforia (2017). Like all OTL, Euforia has simple signal path: potentiometer -> input capacitor -> 6SN7 tube -> inter-stage resistor -> 6AS7 tube - output-coupling Capacitor -> headphone. Parts changed: 1) input...

These are some of my 5R4G: left Brimar, middle Brimar foreign right Phillips. Different internal structure. Two closer photos are Brimar foreign

I have one similar to the left, labeled as Brimar 5R4 (Foreign). Saw a website describes it as GEC Marconi 5R4

https://www.6moons.com/audioreviews2/feliks/1.html. "Measured with a max 1.8Vrms input where THD falls below 0.5%, Euforia will deliver 0.13 watts into 32Ω and 300Ω, 0.2W into 100Ω and 0.08W into 600Ω. Voltage gain is 20dB and output impedance 20Ω. S/NR is about 97dB. Examples of headphones...

Oh, thank you, Gibosi. I have read the spec sheet many time. Some how missed it.

Needing help figuring out WE 422a rectifier tube voltage drop. Recently I acquired a WE 422a. It tests well and functions well in a 421a amp. I have read 422a is a direct replacement of 5u4, but could find voltage drop information on its spec sheet. 5U4G has voltage drop of 44. Thank you

I have used both 7236 and Mullard 6080 in Euforia. They are at oppose ends of sound signature: 7236 is fast and clear, Mullard 6080 is rich and warm.

"What are your impressions of this mod?" openness: sound stage is much larger, deeper, and clearer. Instruments (Classical music) are larger and have more air. 'Can you already say something or does it still need time?' Yes, The improvement is very dramatic right after cap replacement. Teflon...

http://www.v-cap.com/ Wisconsin, USA 0.33uF TFTF.