• Disclaimer: This Vendor's Forum is a paid-for commercial area. Unlike the rest of diyAudio, the Vendor has complete control of what may or may not be posted in this forum. If you wish to discuss technical matters outside the bounds of what is permitted by the Vendor, please use the non-commercial areas of diyAudio to do so.

Please check these parts for SSE?

Status
Not open for further replies.
Jump to Latest
Jockaruba

Jockaruba

Member
Joined 2011
#1
Hi All,

I have been making a parts list for building my first ever amplifier SSE with KT88 tubes.
It will be powering my Kirishima horns (Fortex Fe206En)

Can you please help me check the parts I had to find a replacement for form the original parts list because I have no knowledge in this area?

Also please take a look at my other parts selected?

Thank you
Jock

120uF 500V Electrolytic cap
LGX2H121MELB25 Nichicon | 493-6794-ND | DigiKey

0.22uf 450+V coupling cap (of 600V)
AURICAPXO76011 QTY ADD
0.22uF / 600VDC XO Series, Metalized Polypropylene Cap, 0.52"D x 0.75"L

0.47 100V Mylar cap
BFC247936474 Vishay / BC Components | Mouser

1200 PIV FRED diode
RHRP15120 Fairchild Semiconductor | Mouser


Other:
Power Choke Triad C-14X 6H

Auxiliary power supply cap - ASC 100uF 370 VAC motor RUN (not start) cap

Run Capacitor 100 MFD uf 370 440 V Vac Volts Round AC Electric Motor HVAC | eBay

Output Transformer (2x) 2 x Edcor CXSE25-8-5K
Power Transformer Edcor XPWR035
 
#2
All those parts look suitable for the SSE. You can probably get most or all of the parts to populate the board from DigiKey, saving on shipping cost.
The motor run cap is fine.
The choke is a suitable one. I assume you will mount it under the chassis as
it doesn't have the bell caps to give a nice finished look.

The transformers you've chosen are exactly the same as what I have in my SSE. I can tell you that these will give you great performance.
For a bit more money you can also get an Edcor choke, this choke is what I have in my SSE
https://www.edcorusa.com/cxc125-10h-200ma
This is also a suitable one for less money -
https://www.edcorusa.com/cxc100-7h-150ma

Good luck with your build.
 
#5
Jockaruba said:
Almost ready to order the parts.
A questions about the chokes

From the chokes below, trying to decide which one:
Which one would be most suitable and why? (don't know what the specs mean)
Are there any differences to be expected in sound quality?


Triad C-14X - 6H, 200 mA, 150 ohms

https://www.edcorusa.com/cxc125-10h-200ma

https://www.edcorusa.com/cxc100-7h-150ma

Thank you
Jock
Click to expand...

One difference is DC resistance, one is 75, one is around 100 and you say the Triad is 150.

If you run PSUD, you'll get different B+ voltages depending on what inductor you use, but it also depends on the power tx and the value caps.

But in general the more resistance the lower the voltage.

Randy
 
#6
Jockaruba said:
Almost ready to order the parts.
A questions about the chokes

From the chokes below, trying to decide which one:
Which one would be most suitable and why? (don't know what the specs mean)
Are there any differences to be expected in sound quality?


Triad C-14X - 6H, 200 mA, 150 ohms

https://www.edcorusa.com/cxc125-10h-200ma

https://www.edcorusa.com/cxc100-7h-150ma

Thank you
Jock
Click to expand...


I can't say if there would be any sound quality difference. Any difference would probably quite small.
I got the Edcor cxc125-10h-200ma. Here is my reasoning...

I got all my transformers including choke from Edcor in one shipment. The total shipping cost to
Toronto, Canada was $126.00. The difference in cost between
the cxc125-10h-200ma and cxc100-7h-150ma is just $15.00 and the smaller choke
would have resulted in only $3.00 less total shipping cost so for me it was a no brainer to
chose the cxc125-10h-200ma.
My transformers along with this choke gives me great performance from my SSE.
 
Last edited:
#9
Jockaruba said:
Thanks for all your input!

I found out that this part (resistor 10kOhms 3 W) is out of stock at mouser
283-10K-RC Xicon | Mouser

Can this be used as a replacement?
ERG-3SJ103V Panasonic | Mouser

I notice that there's a difference in temperature coefficient 350 vs 300 PPM / C and the operating temperature range -55 to +235C vs -55 to +70 but do not know if this is relevant for use in the SSE.

Thanks again
Jock
Click to expand...

Hi Jock,

This is looks like a better alternative:
ROX3SJ10K TE Connectivity / Neohm | Mouser

Thanks,
Bibin
 
#11
Jockaruba said:
Thanks Binbin,
You're right, the specs match exactly. Unfortunately minimum order on that one is 1000...
Best regards,
Jock
Click to expand...

Jock, MOQ of 1K is too much.

I am also in the process of building the SSE. Two day before only I created a project in Mouser and a imported the BOM. Every thing was in stock that time.

I also want to find an alternative for this now.

I had also selected the same output transformers (CXSE25-8-5K), yesterday I contacted Edcor and current lead time is 6 weeks.

Actually my brother is travelling from Boston to India first week of November and I need to arrange everything before that. Now thinking about Hammond which is available at mouser.

Let me know if you came across any alternative for that 10 Ohms resistor. The next alternative I got is this,

MOS3C103J KOA Speer | Mouser

By the way from where you are getting the tubes. I am looking it at parts express.

Thanks,
Bibin
 
#12
Hi Bibin,
This is my list from partsconnection where I placed my order yesterday. Hope it is readable:

2 Clarity Film Capacitor 0.22uf / 630VDC, +/- 3%, MR Series, Capacitor CLARITY-74753 $32.09 $64.18
1 CONNEX-62491.jpg ConneX IEC male (chassis mount) w/fuse folder CONNEX-62491 $3.25 $3.25
1 ALPS 50K, Blue Velvet - STEREO Potentiometer ALPS-72497 $19.95 $19.95
2 CONTROLS: TOGGLE SWITCH JR-5014, DPDT, ON - OFF - ON, Miniature toggle, 5A 125V SWITCH-70151 $2.75 $5.50
1 CONTROLS: TOGGLE SWITCH JR-5001, SPST, ON - OFF, Miniature Toggle, 5A 125V SWITCH-70148 $1.95 $1.95
1 CONTROLS: ROCKER SWITCH JR-5501, SPST, ON - OFF, Rocker, 10A 125VAC SWITCH-70155 $2.25 $2.25
1 TUBE: Mullard GZ34 (5AR4) Full Wave Rectifier, 8 pin, Original Box, Russia, Singles TUBEMUL-77710 $39.95 $39.95
1 connex_73285.jpg ConneX SOCKET Ceramic, 9-pin, pcb-mount CONNEX-73285 $6.30 $6.30
3 connex_73289.jpg ConneX SOCKET Ceramic, octal, pcb, gold-plated CONNEX-73289 $7.20 $21.60
1 60036.jpg Tube: NOS Mullard CV4024 (No Logo), 12AT7/ECC81 NOS-60036 $39.95 $39.95
1 TUBE: Mullard EL34 / 6CA7 Power Pentode, 8 pin, Original Box, Russia, Matched Pair TUBEMUL-68114 $49.95 $49.95
1 New Tube: Electro Harmonix_64224 KT88EH / CV5220 Matched Pairs Beam Pentode, 8 pin, Original Box, Russia TUBEEH-64224 $74.95 $74.95
2 ConneX 5-way Dual Binding Posts CONNEX-53464 $10.95 $21.90
1 VAMPIRE CM1F-CB(Copper body) RCA female jack, outside mount, inside nut - mounting hole 0.375" (3/8") PAIR VAMPIRE-55459 $40.00 $40.00
Subtotal $391.68
Tax Total: Outside of Canada (0.00%) $0.00
Total $391.68

Please beware, I have now knowledge on building an amp at all so make sure for yourself that these parts are correct.
 
Last edited:
#13
To make things complete, here are the parts I ordered from Digi-Key.

Please beware, I have now knowledge on building an amp at all so

1 2 IXCP10M45S-ND IC CURRENT REGULATOR TO220AB 2
Immediate 0
2.60000 $5.20
2 9 277-1258-ND CONN TERM BLOCK 2POS 5MM PCB 9
Immediate 0
1.18000 $10.62
3 3 277-1259-ND CONN TERM BLOCK 3POS 5MM PCB 3
Immediate 0
1.74000 $5.22
4 1 493-6794-ND CAP ALUM 120UF 500V 20% SNAP 1
Immediate 0
6.24000 $6.24
Subtotal $27.28
Shipping Estimate
Sales Tax $1.64
Total unknown

Please beware, I have now knowledge on building an amp at all so make sure for yourself that these parts are correct.
 
#15
Thanks Bibin & Spendorite,

These seem to fit the bill.
Planning on ordering the last parts tonight🙂

I'll have them somewhere by the end of this month here. The Edcors will take some more time to produce and then ship by boat. But that's ok, enough to be done in the meantime.

Jock
 
#16
Jockaruba said:
Thanks Bibin & Spendorite,

These seem to fit the bill.
Planning on ordering the last parts tonight🙂

I'll have them somewhere by the end of this month here. The Edcors will take some more time to produce and then ship by boat. But that's ok, enough to be done in the meantime.

Jock
Click to expand...

I can see where your shipping costs may be approaching the cost of your parts, especially the transformers though shipping these by surface mail should be cheaper.
 
#17
spendorite said:
I can see where your shipping costs may be approaching the cost of your parts, especially the transformers though shipping these by surface mail should be cheaper.
Click to expand...

I'll need to ship the transformers to Miami FL and from there trough a freight forwarder to Aruba. By boat it will be charged based on dimensions of the package. The latter part will take between 1 and 2 weeks

A friend of mine will bring the other parts for me from Miami on his flight back here.
 
#19
My Parts list also done, will place the order today.

Here is my list of items from Mouser:

661-EKMS501V470MP25S : Aluminum Electrolytic Capacitors - Snap In 500Volts 47uF 20% Tol.
647-LGN2H121MELB30 : Aluminum Electrolytic Capacitors - Snap In 120uF 500V 20%
647-UPW1J152MHD : Aluminum Electrolytic Capacitors - Leaded 63volts 1500uF 18x35.5 20% 7.5LS
647-UPW0J152MPD : Aluminum Electrolytic Capacitors - Leaded 6.3volts 1500uF 10x20 20% 5LS
539-150224J630LE : Film Capacitors 630V .22uF 5%
75-MKT1818447014 : Film Capacitors 0.47uF 100V 5%
280-CR5-150-RC : Wirewound Resistors - Through Hole 150ohms 5% Tol
280-CR5-560-RC : Wirewound Resistors - Through Hole 560ohms 5% Tol
271-100-RC : Metal Film Resistors - Through Hole 100ohms 1% 50PPM
271-220K-RC : Metal Film Resistors - Through Hole 220Kohms 1% 50PPM
271-220-RC : Metal Film Resistors - Through Hole 220ohms 1% 50PPM
283-150K-RC : Metal Oxide Resistors 150Kohms 5% Tol
281-10K-RC : Metal Oxide Resistors 10Kohms 5% Tol
271-1K-RC : Metal Film Resistors - Through Hole 1Kohms 1% 50PPM
271-330-RC : Metal Film Resistors - Through Hole 330ohms 1% 50PPM
282-100-RC : Metal Oxide Resistors 100ohms 5% Tol
282-150K-RC : Metal Oxide Resistors 150Kohms 5% Tol
747-IXCP10M45S : Current & Power Monitors & Regulators 450V 0.01A
747-DSEP12-12B : Rectifiers 12 Amps 1200V
527-CL90 : Inrush Current Limiters 2A 120ohm
546-125ESE : Transformers Audio & Signal 15W 9.58H 90.6 OHMS
546-194D : Fixed Inductors VOX Replacement AC30 Reissue
660-MOS3C103J : Metal Oxide Resistors RSS3 10K 5%

Parts Express:

Part # 072-252 : Mullard EL34 Vacuum Tube Duet Platinum Matched
Part # 072-862 : Electro-Harmonix 12AT7WC EH Vacuum Tube
Part # 072-320 : Sovtek 5AR4 Vacuum Tube
Part # 055-536 : 8-Pin Vacuum Tube Socket Gold Plated Ceramic PC Mount
Part # 055-540 : 9-Pin Vacuum Tube Socket Gold Plated Ceramic PC Mount 12AX7 Type
 
#20
bibin3210,

A comment on the coupling caps - some folks (including myself) have gone for more fancy caps like Auriocap, Clarity, Jantzen superior Z etc. As I have not done any head to head comparison will not be able to comment on the real life difference between your choice and such caps. Since you plan to order from PE, you can look up the Jantzen Superior Z and see if it fits your overall plan/budget:

Jantzen 0.22uF 1200V Z-Superior Capacitor

The EH 12AT7WC tube doesn't have good feedback on the PE site (albeit the application for the customer was not a hifi amp). Anywhere else you read reviews?

BTW, you will need 3 x 8 pin socket for 2 x EL34 and 1 x 5AR4.

1 x 9 pin tube socket for 12AT7. (Probably you already knew that 🙂)
 
Status
Not open for further replies.
Top Bottom