Go Back   Home > Forums > > >

Elekit News and products from Elekit

Reply
 
Thread Tools
Old 20th January 2021, 12:18 PM   #81
Neville is offline Neville  United States
diyAudio Member
 
Join Date: Jul 2004
Location: Georgia
Quote:
Originally Posted by twitchie View Post
I started building many months ago but got sidetracked when work went covid-insane and I had no free time left ... but things have calmed down before the New Year so I took advantage of the peace and quiet to get back to this. I've installed all the resistors based on the diagrams and want to confirm that I'm supposed to have a pair of 220K resistors left over because they were replaced with 100K now. I remember a sheet included with the extra resistors but I measured and organized all the resistors when I started and discarded that paper.

I'm ready to install the green film caps now as soon as I hear back on the leftover 220K (small) resistors. I did install the blue ones (220K) on the power supply board. The extra ones I have are the brown resistors.
If you referring to the v2.5 modification sheet with extra resistors and caps, I am also at that stage of my build and Victor told me last night that we do not need to do that-those were extra parts.

Last edited by Neville; 20th January 2021 at 12:48 PM.
  Reply With Quote
Old 20th January 2021, 02:45 PM   #82
vkung is offline vkung  Canada
diyAudio Member
 
Join Date: May 2005
Location: Vancouver BC Canada
a lot of builder prefer the original version..
  Reply With Quote
Old 20th January 2021, 05:30 PM   #83
twitchie is offline twitchie  Canada
Magic Smoke Liberator
diyAudio Member
 
Join Date: Jul 2004
Location: Toronto
EQ1616D Phono Amp
The assembly instructions I have are for Version 2.2 and I did get extra 100K resistors but don't remember getting extra caps. I just want to make sure I didn't miss anything as I've gone over the schematic a couple of times and gone over the resistor installation image many many times but don't see any spot for 220K (218K measured) resistors so wanted to ask for confirmation that I don't need these.

In the meantime, I've finished assembly now and ready to test voltages with the diode rectifier as I see it says that you can expect lower B+ if you use a tube rectifier.

I have another question - for test voltage measurements, what am I using for GND reference? Do I use chassis? Do I use the GND pads on the lower right side of the PSU board?

I know it's common in Japan to have floating ground but should I add a power plug ground and replace the IEC? Any harm in doing so if I connect it with a ground isolator of some sort?
  Reply With Quote
Old 20th January 2021, 05:46 PM   #84
twitchie is offline twitchie  Canada
Magic Smoke Liberator
diyAudio Member
 
Join Date: Jul 2004
Location: Toronto
EQ1616D Phono Amp
Pics
20210119_171042.jpg

20210120_104757.jpg

20210120_104822.jpg
  Reply With Quote
Old 20th January 2021, 06:14 PM   #85
Neville is offline Neville  United States
diyAudio Member
 
Join Date: Jul 2004
Location: Georgia
That looks good twitchie. I installed 3 prong IEC and yet to wire it - perhaps to the tooth washer under the one leg supporting power supply board or the gnd terminal as they both are connected to each other.

I am curious to see what the answers are to your questions. They will help guide me.
  Reply With Quote
Old 20th January 2021, 09:43 PM   #86
twitchie is offline twitchie  Canada
Magic Smoke Liberator
diyAudio Member
 
Join Date: Jul 2004
Location: Toronto
EQ1616D Phono Amp
@Neville, I clipped my negative probe to the shiny tab that holds the shield in place on the PSU board, which happens to be screwed into the post with the toothed washer connected to the chassis. I tested resistance to the GND pads on the board and it showed continuity so I went with that. All my measurements were within spec - make sure your probe is shielded with heatshrink to avoid shorting anything as you will be probing around spaces with many bare leads very close by.

I am going to leave it for now and might revisit it to add a 3-prong IEC and ground strap if I ever open it up again but for now it's built as directed.

I've buttoned it up and swapped in the psvane 274 rectifier. Right now I've got Gold Lion ECC83/ECC82 tubes installed but picked up a pair of (Fisher branded) Telefunken ECC83 smooth plates from ebay that I want to try (maybe later).

Thank you for another amazing project Victor!!!

20210120_133441.jpg

20210120_162942.jpg

20210120_163019.jpg
  Reply With Quote
Old 20th January 2021, 09:57 PM   #87
twitchie is offline twitchie  Canada
Magic Smoke Liberator
diyAudio Member
 
Join Date: Jul 2004
Location: Toronto
EQ1616D Phono Amp
Some things I wish I knew before I started:

- it actually tells you in the manual that if you see an orange dot on the connection, do NOT solder it yet because more connections are coming. Blue dot means go ahead and solder

- when connecting to the switches, you are better off keeping the wires close to the chassis and approach from below as you will be connecting in with capacitors later on from above and you may run into the jumble of turnover wires that come near the end. I connected from above because I wanted to heatshrink these and it turns out that was probably not the best idea and unneccessary

- be patient and do not expect this to be a quick build

- as much as you think the wiring is difficult to install (neatly) because they don't retain any shape, the resistors are not much easier and there are so many of them. Just keep at it and eventually you'll have it all done. I installed anywhere from 4-10 resistors a night over the course of a week and did the same for wire connections over a longer period but now it's done and next up is an external step up transformer build

... but a break for now and time to spin some records
  Reply With Quote
Old 20th January 2021, 10:35 PM   #88
Dennis Hui is online now Dennis Hui  Canada
Hoopy Frood
diyAudio Member
 
Join Date: Aug 2002
Location: Toronto, Canada
EQ1616D Phono Amp
Congratulations!
__________________
We are fearless amplifier builders. A little heat doesn't scare us at all.
- NP 2002
  Reply to this post

Reply


EQ1616D Phono AmpHide this!Advertise here!
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
SUNvalley SV-EQ1616D vkung Elekit 0 14th February 2019 03:58 AM
Sunvalley SV-EQ1616D -coming soon vkung Elekit 0 26th January 2019 03:51 AM
How Can I connect A Balanced RIAA Phono Pre-Amp to a Phono Plug amp input jmartinbaugh Analogue Source 3 25th April 2011 02:24 PM
Need to change phono gain on Rowland phono module Mikelo Solid State 0 4th October 2009 02:43 AM


New To Site? Need Help?

All times are GMT. The time now is 11:24 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio
Wiki