Toneczar - Openhaus

agung · Post by **agung** » 26 Apr 2012, 20:30

: here's the pictures of my OH

gigelmargel · Post by **gigelmargel** » 29 Apr 2012, 07:10

It's possible to use 2N7000 or BS170 for MOSFETs? I have no chance to find the originals here

Ang3lus · Post by **Ang3lus** » 29 Apr 2012, 15:13

Don't see how you can, read here:

viewtopic.php?f=10&t=14181

gigelmargel · Post by **gigelmargel** » 29 Apr 2012, 20:01

Ang3lus wrote:Don't see how you can, read here:

viewtopic.php?f=10&t=14181

Thank you very much Ang3lus!
In the post above I saw that Supertex makes LNDs and I found that they have a distribuitor here, in Romania, so I hope I will buy a couple soon

earth468 · Post by **earth468** » 13 May 2012, 21:51

I am trying to build this on vero, my first project. I can understand the onboard stuff in the diagram, but i have no knowledge about the off board wiring. Ive tried looking in the beginner's wiring and switching section but i am still not able to understand many things.

This is the diagram i am following: http://2.bp.blogspot.com/-KPMupbXJjHc/T ... enhaus.gif

and this is how much i am able to understand http://dl.dropbox.com/u/72569269/asd.jpg

I cant do the rest of the connections to input/output jacks, 3pdt, LED, dc jack.

Can anyone complete the connections, or link me to an example which can help. If someone can draw up the rest of the thing will be great help. Thanks.

earth468 · Post by **earth468** » 13 May 2012, 22:05

Also what is the meaning of (?) written in front of a resistor and capacitor in that diagram ?

Ang3lus · Post by **Ang3lus** » 14 May 2012, 15:07

the "?" means that the value is not fully confirmed, usually "guessed", and all the offboard wiring can be seen here:

http://www.madbeanpedals.com/tutorials/ ... ng_MBP.pdf

hope that helps.

if you need any more help, PM me

lefos21 · Post by **lefos21** » 11 Jun 2012, 12:18

Hi guys I have some question about some parts on this project. I'm about to build it and as a newbie to electronics I'm having some problems.
Is the LND150N3 the same as LND150N3-G ?
Is UA78L15 the same as LM78L15 ?
Can I use any replacements parts instead of OPA2604AP and 2N1306 ?

Thanks in advance, any answer will be helpful to me.

Ang3lus · Post by **Ang3lus** » 11 Jun 2012, 15:43

the UA is SMD, while the LM is through-hole, which is what you need.

regarding the transistors, the germaniums you can replace the 2n1306 with 2N388
the opa2604 you can't replace i think.

lefos21 · Post by **lefos21** » 11 Jun 2012, 16:32

Nay...the only reason I ask is because some parts is expensive, the opa2604 is cheaper.
Thanks for your answer!

lefos21 · Post by **lefos21** » 12 Jun 2012, 13:28

So what about my other questions?

Ang3lus · Post by **Ang3lus** » 12 Jun 2012, 19:23

the LND ?

dunno

but you must get the G version, try digikey.

it's a depletion mosfet, there are maybe other types, which i have no idea what they do, or maybe other voltage ratings ?

try reading the datasheets.

get the G though, don't sub parts on this build, could get noisy/weird sounding.

lefos21 · Post by **lefos21** » 12 Jun 2012, 21:20

digikey doesn't has it. I've searched it everywhere but I can't find it. What should I do.

kinski · Post by **kinski** » 12 Jun 2012, 21:34

Mouser:

http://www.mouser.com/search/ProductDet ... 52bg%3D%3D

lefos21 · Post by **lefos21** » 13 Jun 2012, 09:49

kinski wrote:Mouser:

http://www.mouser.com/search/ProductDet ... 52bg%3D%3D

Kinsky I already know tha is available at mouser but is too expensive in shipping they charge me 30$ for 1$.
If you know any other store please let me know.

Another question I have is that today I asked in a local store for the LM78L15 and gave me MC78L15. Is it the same? ? ?

lefos21 · Post by **lefos21** » 14 Jun 2012, 09:14

Looking at the datasheets I figured out that the "-G" in LND150N3-G is the symbol for TO92 version.
Anyway can anyone tell me if I can use any other resistor instead of the 604ohm one? ? ? ? ? ? ?

generalkustard · Post by **generalkustard** » 16 Jun 2012, 09:57

I have just started an attempt at an Openhaus clone and have a couple of questions. One of the resistors is specified at 604R, is this value particularly important or will 620R suffice? I looked on ebay and could only find 1 person selling 604R resistors and they are ridiculously expensive (£5.85 for 5). Also I was wondering about using some OC141's instead of the 2N1306's because that's all I have at the moment. I don't currently have a way to measure HFE and I'm new to all this so please forgive my newbie questions. Thanks for any help offered.

generalkustard · Post by **generalkustard** » 16 Jun 2012, 22:31

noelgrassy wrote:I just scored 50pcs. 2N1306 for less than $20 with shipping. I'm going to test them for gain now.

How times have changed..http://www.ebay.co.uk/itm/JAN2N1306-TI- ... 1061wt_940

lefos21 · Post by **lefos21** » 16 Jun 2012, 23:12

Search for cheaper seller. In a local shop here in Greece I bought them 0,22 euros per piece.
Maybe contact these sellers for better price or search local elecronic shops.
https://www.ebay.com/itm/2N1306-Germani ... 415d63dc6c
https://www.ebay.com/itm/2N1306-TEXAS-I ... 19d03875c0

lefos21 · Post by **lefos21** » 16 Jun 2012, 23:22

generalkustard where are you from?

Toneczar - Openhaus [traced]