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[ORDER] Distribution Amplifiers

Category: Unknown · Tags: — · Posts: 36

#1 — Fox · 2020-12-08

My first official order thread!

To fund the next (and hopefully final) revision of my RGB Switcher, I made two different Buffered Multiples. I only have 17 of each of these for sale. I will likely have more made at a later date.

20201207_150803

Description:

– 3U, 4HP, 40.64mm (1.6in) deep

– 2pcs: 1xFaceplate, 1xPCB - Module (B) - Triple YRGB Distro Amp

– 3U, 8HP, 40.64mm (1.6in) deep

– 3pcs: 1xFaceplte, 2xPCB

Both modules are of course video-rate multiples and with cascaded inputs, each module can be used in several ways. the Dual 1:3 mult may be used as a Single 1:6 mult and the YRGB mult may be used as a 1:12 mult, Dual 1:6, 1:9 & 1:3, and more!

These would be great companions for the upcoming RGB switcher which will now have a switched VC input for the threshold pot. While these are labelled for YRGB, consider using the “Y” for several daisy-chained RGB switchers.

:wink:

Available Options:

Shipping:

I’ll combine shipping for anyone who wants more than one. Reply below, or PM me to get yours!

Below you will find the BOM and photo build guides.

Thanks everyone!

-Fox

List:

#2 — Fox · 2020-12-08

Dual 1:3 Distribution Amplifier

BOM, Build guide and Schematics

Expand for BOMQtyValueParts4100K resistorR1 - R410499R resistorR5 - R142100n capacitorC3, C4210u 25v Electrolytic CapacitorC1, C221N4001 diodeD1, D2268R Ferrite BeadFB1, FB28PJ302M JacksJ1 - J812x5 (10-Pin) male headerJ91LM6172U1

Expand for Build GuidePopulate shortest parts first.

1to3BuildGuide (1)

Step 1: Resistors

R1-R4: 100k Ohm

R5-R14: 499 Ohms

1to3BuildGuide (2)

Step 2: Diodes, Beads

D1, D2: 1N4001 (Alternate 1N5819)

FB1, FB2: 68 Ohm @ 100MHz

Pay attention to the diode’s stripe.

1to3BuildGuide (3)

Step 3: caps

C3, C4: 100nF (MMLC or film box)

Optional: 8-pin DIL socket

1to3BuildGuide (4)

Step 4: Electrolytic caps, power connector

C1, C2: 10uF 25v Electrolytic Capacitors

J9: 2x5 pin male header (or shrouded connector

Pay attention to the polarity. The stripe points to the negative pin.

1to3BuildGuide (5)

Step 5: jacks

Place jacks in circuit board. Do not solder.

1to3BuildGuide (6)

Step 6: faceplate

Line up faceplate and add nuts to jacks. Finger tighten and once the jacks are straight, solder jacks.

Tighten nuts fully,

1to3BuildGuide (7)

Step 7: IC

U1: LM6172

May optionally be soldered directly or inserted in socket.

1to3BuildGuide (8)

Expand for Schematics

ModuleA_sch

#3 — Fox · 2020-12-08

Triple YRGB Distribution Amplifier

BOM, Build guide and Schematics

Expand for BOMQtyValueParts8100K resistorR1 - R4, R20, R21, R27, R2820499R resistorR5 - R19, R22 - R264100n capacitorC3, C4, C5, C621N4001 diodeD1, D2268R ferrite beadFB1, FB22LM6172 op ampU1, U212x5 (10-Pin) male headerCONN1210uF 25v electrolytic capacitorC1, C216PJ302M jacksJ1 - J1616-pin female stackable headermisc16-pin male pin headermisc

Expand for Build GuidePCB 1:

Populate shortest parts first.

20201207_134946

Step 1: 100k Resistors

R1-R4, R20, R21, R27, R28: 100k

20201207_135616

Step 2: 499R Resistors

R5 - R19, R22 - R26: 499R

20201207_135835

Step 3: beads, diodes

FB1, FB2: 68 Ohm @ 100MHz

D1, D2: 1N4001 (alternate 1N5819)

20201207_140129

Step 4: sockets

optional: 2x 8-pin DIL sockets

20201207_141357

Step 5: capacitors

C3 - C6: 100nF (ceramic, MMLC or film type)

20201207_142200

PCB 2:

20201207_142232

Step 6: resistors

R5, R11, R13, R14, R18, R19, R25, R26: 499Ohms

All resistors on this board are 499R

20201207_142559

Step 7: PCB 1 jacks

Place jacks in pcb 1 (green). Do not solder.

Line up faceplate and add nuts to jacks. Finger tighten and once the jacks are straight, solder jacks.

Remove faceplate before step 8.

20201207_144039

Step 8: PCB 2 jacks

Place jacks in pcb 2 (blue). Do not solder.

Line up faceplate and add nuts to jacks. Finger tighten and once the jacks are straight, solder jacks.

Place both pcbs into faceplate and tighten nuts fully.

20201207_143408

20201207_143356

Step 9: backside header

Users may choose to use a ribbon cable or one 6-pin stackable header and one 6-pin male pin header.

Start by connecting the male and female headers together, then insert it between the boards and solder each side. 20201207_144744

20201207_144727

Expand for Schematics

YRGB_sch

#4 — 337is · 2020-12-08

Great work. Happy to support and eager to build.

:slight_smile:

DM sent.

#5 — meudiademorte · 2020-12-08

:point_up:

would take both

Shipping to germany

#6 — Robbertunist · 2020-12-08

Hi Pascal, any chance you’re in Berlin?

#7 — Robbertunist · 2020-12-08

Any of ye in need of a buffered Multiple & interested in one or both of Fox’s designs? @horacio2222@VanTa@destroythings

#8 — meudiademorte · 2020-12-08

Nope, Saarbrücken. So Far away from u.

#9 — Robbertunist · 2020-12-09

It is the other end of Germany for sure, thanks for answering anyhow @meudiademorte

:+1:t3:

@Fox, how much is the postage to Germany? It still might make more sense to ship a few to one person in Germany and they then distribute them from here, because postage within Germany is cheap. I’ve got plenty of the right angled Thonk jacks & LM6172s here.

& can even build a unit or two if someone doesn’t have the soldering know how or equipment.

#10 — Fox · 2020-12-09

Robbertunist wrote:

how much is the postage to Germany?

I am going to find out shipping cost tomorrow. The post office has already closed today.

Looking online, a few shipping options may be:

“First-Class Package International Service” = 14.75 USD, delivery date “varies by location.”

“Priority Mail International® Small Flat Rate Box” = 37.45 USD, delivery may be 6-10 days.

I cannot guarantee these prices, but I will find out for sure tomorrow.

#11 — Robbertunist · 2020-12-09

Thanks for checking @Fox

:+1:t3:

If anyone has any tips regarding good service providers or suggestions regarding postage costs to Europe, we’re all ears :blush:

#12 — joem · 2020-12-09

It’s hard to beat the USPS prices that Fox quoted, for individuals/small companies. (Larger companies can get negotiated rates from some shipping companies.) Shipping internationally from the US pretty much always costs a lot. Might be able to get it down a little by shipping in an envelope of some kind instead of a box (if it’s just PCBs), but then you run the risk of damage with international shipments especially.

That said, putting a few pcbs together and masking-tape them together so they don’t slide against each other makes for a pretty tough little thing. A tight sandwich of cardboard with masking-taped PCBs in between, put in some sort of envelope can be a decent method. I believe that’s how Pusherman shipments are packaged, and I’ve seen similar done with a few other PCB sellers.

#13 — Fox · 2020-12-09

It’s always been tough for individuals. I hate it when the shipping is more than the products.

:scream:

joem wrote:

That said, putting a few pcbs together and masking-tape them together so they don’t slide against each other makes for a pretty tough little thing. A tight sandwich of cardboard with masking-taped PCBs in between, put in some sort of envelope can be a decent method. I believe that’s how Pusherman shipments are packaged, and I’ve seen similar done with a few other PCB sellers.

Good tips. I am going to find some packaging materials to have at my house so I don’t have to buy the stuff every time I visit the post office.

#14 — wednesdayayay · 2020-12-09

if anyone is selling built modules I’d be up for one of each

#15 — Robbertunist · 2020-12-09

Cheers @Joem for all the tips, they’re good ones & I’ve received such a delivery a couple of times & everything was fine thankfully. Masking tap was a bit annoying but it did it’s job

:+1:t3:

@Fox, I’m much happier to receive recycled materials. Firms here often have bins (yellow for recycling contents) full of clean bubble wrap & boxes of various sizes. I’ve even found padded envelopes

:wink:

@wednesdayayay, I’d happily oblige but the Atlantic is an issue as well as customs. @Fox, if you’ve a bit of free time, collect some of those “value added” dollars

:grinning:

#16 — reverselandfill · 2020-12-09

Fox wrote:

Good tips. I am going to find some packaging materials to have at my house so I don’t have to buy the stuff every time I visit the post office.

I buy my packaging material at RAJA packaging. I only use paper & cardboard boxes. NO plastic!

For padding, I use a document shredder and old magazines / recycled paper

#17 — Robbertunist · 2020-12-09

Count me in for 4 of each @Fox

:+1:t3:

#18 — brdaniell · 2020-12-09

2 A please! Love the parts list on the pcb

#19 — jestern · 2020-12-09

Fox wrote:

Dual 1:3 Distro Amp

Hey this is right on time, @Fox, I’ll get 3x Dual 1:3 Distro Amp

#20 — mrfang · 2020-12-09

I’m interested in 2 PCB/panel sets of each!

#21 — Fox · 2020-12-09

@meudiademorte: 1x Each - DM’d @Robbertunist: 6x Module (A), 4x Module (B) - DM’d @brdaniell: 2x Module (A) - DM’d @wide_closed: 1x Each - DM’d @jestern: 3x Module (A) - DM’d @mrfang: 2x Each - DM’d @wednesdayayay - DM’d

I am contacting everyone now. If you don’t hear from me in the next hour, please DM me.

#22 — wednesdayayay · 2020-12-10

it would be super cool for the distro amp to have a +1V present at the outputs when nothing is plugged in!

I hadn’t considered that before but it could be very helpful to have some more static voltages in the system

just a thought for future revisions or other modules

:slight_smile:

#23 — saiteron · 2020-12-10

@Fox would love to pick up three PCB/panel sets for the YRGB distro amps if they’re still available!

#24 — Fox · 2020-12-10

wednesdayayay wrote:

I hadn’t considered that before but it could be very helpful to have some more static voltages in the system

Neat idea. I was working on a board that took a single input and shifted it both upward by +0.25v, +0.5v, +0.75v and downward by -0.25v, -0.5v, -0.75v. Alternatively without an input, the outputs present the above mentioned static voltages. I wasn’t sure how it could be used so I haven’t shown it off. Maybe I will.

@saiteron Sure thing, I will message you right now.

#25 — wednesdayayay · 2020-12-10

that sounds like it would be a fun modulation pal!

if you took a LFO into it and then used waveshapers/comparators/slews on the different outputs it would give a wide palette of system control.

I love the creativity keep it coming!

#26 — csboling · 2020-12-10

@Fox I’ll buy one YRGB distro amp! Awesome projects!

#27 — Fox · 2020-12-10

Excellent! Messaging now…

#28 — Maytoast · 2020-12-13

Any built ones being made? Do you have a website these will be available from? Looking rad!

#29 — saiteron · 2020-12-13

if Fox doesn’t sell any built ones, i will be building 3 soon with 2 for sale. ordering parts this coming week and should be able to build before the end of the month.

#30 — allthesixes666 · 2020-12-20

Hi, if you still have two of Module (B) left, could I take them both please?

Let me know, with shipping to the UK

thanks

#31 — Fox · 2020-12-20

DM’ing

I have 30 more of these coming soon as well as the next (soon to be tested) revision of the RGB switcher.

#32 — jsonpayload · 2020-12-31

Anyone in the US up for selling a built version of Module B?

#33 — Fox · 2021-01-04

As soon as my op amps get here, I will have some built/ tested modules available. Each will come with a 5-6" power cable. Feel free to DM me and place claim.

20210104_143134

@wednesdayayay @jsonpayloadEDIT: Updated Stock

#34 — Midcitysteve · 2021-02-18

Hey @Fox did you ever get another round of pcbs made? Id like 2x module A and 1x module B shipped to the US. Thanks.

#35 — Robbertunist · 2021-06-27

If anyone in Europe is looking for these either built or as PCB&Panel sets, I’ve got a few of both buffered Mults available.

#36 — homegrown · 2024-07-08

Just got my Fox multb and daisy and super excited to build them. Not a big deal but thought I’d give a heads up that there is a missing step in the build guide (for the trip YRGB mult) to populate the two 10uF electrolytics.