Effects Design Sites

There are many good engineers around who have helped with theory and ideas and have taken the time to share their experience.  I can heartily recommend these sites:

R.G.Keen’s site, Geofex

Jack Orman’s site, AMZFX:

John Hollis’ schematics page:


Component Suppliers

I’m based in the UK  so I tend to use British suppliers.  These are the ones I use the most:

Farnell Electronics:  (minimum order value of £20)

Rapid Electronics (now comparatively expensive on delivery)

Technobots: (they have low small-order charge)

Spiratronics: (excellent service, low postage charge.  eBay or their website)


Buying Stuff From Ebay/China

I have quite a lot of experience with eBay and I generally take the view that you will win some and lose some  so I have been happy to risk buying direct from China/Hong Kong.  I have to say that (on the whole)  it’s been relatively painless.   Shipment time can be a month or more – so you need to be patient.

Generally speaking, it is wise to only buy semiconductors from a reputable supplier as there are an increasing number of fakes around.  Consequently (and regardless of any price disadvantage) I always buy semiconductors from reputable British suppliers if I can.

However, in the world of guitar effects there are a number of components which are obsolete and not generally available so you have to try potentially more risky suppliers.

At the time of writing (February 2012) I can recommend the following eBay sources:

Yoyo Components: (UK stock)

goodbuy7888: (Hong Kong; successfully bought 1N34A and MN3007 and PT2399).

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