Recent content by WarriorAnt

hello! How did things turn out with your 505? I have the same production date you have. it is the last of the 505's production line from what I understand. your boards look just like my 505 with the same missing capacitors C815. C816. it also has the same resistor/ceramic capacitor...

Thanks for the reply! This wil be quite helpful.

Also looking for 2SC281 substitute. And 2SA640 2SC875 2SC1211 2SA697 2SC1124

Did you ever get to compare a COG and Wima FKP on the amp board of the 505?

You should heatshrink since the electrodes here could fall onto the chasis. But heat shrink was a bit fiddly the way I had soldered onto the resistors at a right angle (which was on purpose because of how I want to tuck the wires neatly). So I used some liquid 'electrical tape' - nasty smelling...

Might want to ship that one back to the states so you can do a thorough refurb.

Thanks for the replies!

Not much attention seems to be paid to the headphone out of the 505 in any of the rebuilds I've seen. From the schematic it appears that the headphone out comes right off of the C 819/820 caps with one resistor in each path. Respectively R 861/862 470 ohm. This seems like a nice resistor to...

Thanks for passing this idea on! Looks very convenient. Do you have a sleeve on the nearby capacitor to protect it from heat emitting from the new rail rectifier? Where does one get those?

I also noticed that in your excellent 555A build that you used a pair of bipolar caps at C807/808 for reasons explained in that thread. But here on the 505's F- 1266-1 board you went with Silmic's I believe. I was just curious if the same reasons for a pair in the 555A also pertains to the 505...

What value are the Wima's that you used at C801/802? 47pF?

listening Space. DIY stands, rack, and broadband acoustic panels. Bass traps, diffusion, clouds to come.

HYPERION helped me out with a link to the sites databases for the schematics. thanks again!

WOW! Thanks for the links and the help. I did not realize how in depth and amazing this website is.