EZ1084EQ NEW BATCH COMING - SEE MY MARCH 27 COMMENT ON PAGE 38

[kquick]

well you dont need -24V.
but it would be good to se the - rail to -24V as well...if not it could over heat the regulator.
You can star ground to pin 2 or 3 as you like but only if needed!
Thanks

Thanks 3nity, but I am still confused about pin 1 zero volts. I am using the Fivefish 2448 power supply which I have set for +/- 24 volts, +48 and it has a ground pad I am going to wire pin 4 to +24  how do I wire pin 1 for zero volts on the power supply?  can not believe I set +48 to zero?

(Edit) I looked farther back in the thread there is a picture posted of a power supply it was very hard to see the output wiring but I think pin 1 was wired to ground on the power supply board is that correct?

Thanks
Kim

 

[3nity]

Alrigh on this case ground = 0V.

 

[kquick]

Alrigh on this case ground = 0V.

Thanks 3nity

Kim

 

[Bluzzi]

Hi Kim

As 3nity said. Just make sure you wire the 0v to the PCB as in the Build Guide. The PCB takes care of grounding.

Cheers

Jim

 

[kquick]

Hi Kim

As 3nity said. Just make sure you wire the 0v to the PCB as in the Build Guide. The PCB takes care of grounding.

Cheers

Jim

Hi Jim,  Yea I understand the wiring at the pcb to the xlr pin 1, where I am getting confused is at the power supply.  Do I wire pin 1 of the xlr on the power supply to ground on the 2448 power supply board from Fivefish? 0v at the power supply is confusing me I assume its ground correct. I am sure this is simple but it has me baffled  ???

Thanks
Kim

 

[Bluzzi]

Hi Kim

As 3nity said. Just make sure you wire the 0v to the PCB as in the Build Guide. The PCB takes care of grounding.

Cheers

Jim

Hi Jim,  Yea I understand the wiring at the pcb to the xlr pin 1, where I am getting confused is at the power supply.  Do I wire pin 1 of the xlr on the power supply to ground on the 2448 power supply board from Fivefish? 0v at the power supply is confusing me I assume its ground correct. I am sure this is simple but it has me baffled  ???

Thanks
Kim

I use 0v as it is relative (+24v is relative to GND in this case which is 0v). So yes on the FiveFish PWR supply consider Ground as 0v. But what I was trying to say is don't hook up the GND wire to "chassis/case".

I think you are getting it though. Its FiveFish GND to pin1 on XLR.

Cheers

Jim

 

[kquick]

Hi Kim

As 3nity said. Just make sure you wire the 0v to the PCB as in the Build Guide. The PCB takes care of grounding.

Cheers

Jim

Hi Jim,  Yea I understand the wiring at the pcb to the xlr pin 1, where I am getting confused is at the power supply.  Do I wire pin 1 of the xlr on the power supply to ground on the 2448 power supply board from Fivefish? 0v at the power supply is confusing me I assume its ground correct. I am sure this is simple but it has me baffled  ???

Thanks
Kim

I use 0v as it is relative (+24v is relative to GND in this case which is 0v). So yes on the FiveFish PWR supply consider Ground as 0v. But what I was trying to say is don't hook up the GND wire to "chassis/case".

I think you are getting it though. Its FiveFish GND to pin1 on XLR.

Cheers

Jim

Thanks Jim,  I understand now .  Going to start testing 3 of the 1084's

Cheers
Kim

 

[spase]

any of this boards in stock?

 

[Bluzzi]

any of this boards in stock?

I will have some soon. Get your orders in as soon as possible. Thanks.

Cheers

Jim

 

[kquick]

I have my gain switch set for eleven positions do I have to have R2 jumpered? In the build manual it says if seven position jump R2 to R6 as shown but all it shows is R2 jumpered.

Thanks
Kim

 

[Bluzzi]

I have my gain switch set for eleven positions do I have to have R2 jumpered? In the build manual it says if seven position jump R2 to R6 as shown but all it shows is R2 jumpered.

Thanks
Kim

Hi Kim,

Yes correct. You must jumper R2 or you would not get signal. If your Build Guide does not show that then you do not have the latest one. The link is still active if you want to get it. Let me know if iyou have any other questions. Have a great build.

Cheers

Jim

 

[kquick]

Okay fired up the first unit  (no Smoke  )) but after running some audio thru the unit I noticed I have some hum.  When I have Mid Freq Switch on (SW4) I can not turn switch (RV2) up past half way or I get hum If I turn High Freq Switch (SW5) on then the hum stops on (RV2) and I can turn it all the way up no problem,  but then I can not turn switch (RV3) past half way with out hum starting.  It gets worse the the more I turn up (RV3).  Not sure were to start looking usually if I get hum I start checking my grounds and the way I have run my wiring.  But there is not  much of either on on this build. The hum seems to follow the circuit down from mid frequency to high frequency. Any help would be appreciated.

Thanks
Kim

 

[bieckmusic]

Hello, any boards in stock??  Also, is there a build manual or bom anywhere to look at?  I think I want 2 boards...

Happy Holidays!

greg

 

[Bluzzi]

Hello, any boards in stock??  Also, is there a build manual or bom anywhere to look at?  I think I want 2 boards...

Happy Holidays!

greg

Hi Greg,

I am awaiting some boards. I'll have some in the new year. There is a BOM and Build Guide.

Cheers

Jim

 

[shabtek]

any news on the micpre add-on

 

[Bluzzi]

I thought I had posted it or Madriaanse had. Sorry if not.

Yes the mic pre works no problem from the get go.  Martin should have a few in stock.

Cheers

Jim

 

[yodermr]

One down (Pic attached)... and one to go. Please sign me up for a board  :

Thx Jim - Sounds great

Mark
[email protected]
www.DemoFactory.Biz

Rock on!

 

[Bluzzi]

One down (Pic attached)... and one to go. Please sign me up for a board  :

Thx Jim - Sounds great

Mark
[email protected]
www.DemoFactory.Biz

Rock on!

Hi Mark,

Nice unit look! Glad you are enjoying the "tone". How did you find the build experience?

I noticed on your website you have some guitar amps. Are those DIY too? Very nice.

I put you down for 1 reserved unit. I'll be alerting you when they come in.

Thanks for the continued support.

Cheers

Jim

 

[thebigskinny]

Id like 2 boards pls when do you think you'll be doing them?

 

[yodermr]

Yes that's all me. DIY with a passion for bigger and better each time.

The build was easy but I have been through a few learning projects over the years. I did end up having someone build a 5mm wrench to fix a switch.. just try to find one or risk using needle nose when the switch is installed -yuk. Caution on using weak/ thin resistor leads in place of the pins that came with them - They bend and drop inside the switch! Very easy fix with the right tools.

For the typical DIY'er, suggest you offer a "round hole" alternative power switch part #. Can't do square hole with a home drill.  Nice to have friends with access to a Plasma Cutter though

Happy to offer up the laser engraving file to anyone interested, modify if they want or just do it for them. Any local area engraver with a Laser Engraver machine and CorelDraw could use it. I set it up to provide drill hole centers. Pretty easy to adjust for knob diameter. Catch my labeling screw up?  ???

BTW - Anyone got a source for Neve'ish double bar knobs? Can't find the surplus site that I got these from and I want a matching pair of ez1084s!!