Topics

I can't seem to find the lamp and LDR part numbers in the Harbinger PDF in Europe, so I need similar parts that work. I found this Univibe kit from Banzai in Germany: http://www.banzaimusic.com/Univibe-Upgrade-Kit.html It is quite expensive though at 10 euros plus 8 euros shipping costs. It also doesn't include part numbers or specs, but I trust Banzai as a supplier and I can also buy lots of other stuff there.

Locally, in the Netherlands, I usually buy from Newtone. They have this lamp for sale: http://www.newtone-online.nl/catalog/product_info.php?products_id=1465 In the text it says that it can be used for "Madbean Vibrato". I assume that's the Quadrovibe project. Can that lamp also be used in the Harbinger project, or are the specs different? It seems that it is smaller, but is that actually a bad thing for this project? Other tips for finding the 'right' lamp for the project in Europe are welcome.

Then there's the LDRs. Newtone carries several: http://www.newtone-online.nl/catalog/index.php?cPath=47_80 There are two that can be used for the Easyvibe, according to the project. The difference is in the range of the light/dark resistance, 10k/50k to 5M (type9200) or the bigger 5k/20k to 20M (type9203). So, is bigger range better or should I go for 5M dark resistance? The 9203 is also used in the Quadrovibe.

How is the sound difference between the Quadrovibe and Harbinger anyway? Has anyone tried both?

Last question: how is the lamp life in this project? Could I solder it down and not have to worry about it for the next ten to twenty years with moderate use (let's say about four hours a week generally) or is it wise to socket it in some way?


EDIT: I built it with the Banzai kit and it works perfectly! Please scroll down...

Sooo, I built me a Sea Urchin! I used a board from Haberdasher's stock, but I added the modulation section from the Echo Base (see attachment) and the extra voltage regulator protection from the topic on FSB on vero. The modulation can really add another dimension to the delayed signal, from a subtle warble to some wacky sounds. To be honest though, the Sea Urchin already sounds great without the modulation. In fact, I think I will buy another Sea Urchin board from Haberdasher.

For another forum I made this compilation of random sloppily played Black Sabbath riffs through several DIY fuzz pedals.
[cloudset]http://soundcloud.com/knepperaudio/sets/sabbath/s-v1jvw[/cloudset]

TB = Tonebender MKII w/ OC75's
BM = Triangle Big Muff
MH = DAM Meathead std.
SF = Univox SuperFuzz

The signal chain is: Gibson Iommi SG -> FUZZ -> Vox AC30 AMPLUG -> Laptop.

The Big Muff clip could be dialed in better, but I'm happy about the rest. The SuperFuzz really stands out here.

Well, the topic title really tells you my question: is it necessary to select/test FETs for the Faultline (SFT) and Grapevine (DLS) projects? Like you would, for instance, for a Fuzz Face type pedal? Or can you just solder random 2N5457's in without major sound differences?

The reason I'm asking is because both projects have a total of 14 FETs combined. I don't want to be soldering in sockets for 14 transistors, testing, soldering the 14 sockets out and then soldering 14 FETs in unless I really have to. I really do want the transistors soldered. If you keep them in sockets they will fall out eventually if you actually use the pedals regularly.

Also, has anyone tried different types of FETs, like J201's, etc?