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Re: MOSFET Coil- Ready..Set...
Original poster: "Jan Wagner by way of Terry Fritz <teslalist-at-qwest-dot-net>" <jwagner-at-cc.hut.fi>
On Fri, 4 Apr 2003, Tesla list wrote:
> Original poster: "S Gaeta by way of Terry Fritz <teslalist-at-qwest-dot-net>"
> Hi All,
> I am finally getting serious about building a mosfet coil. I actually wound
> the gate drive transformer so far!
> I want to build the self resonant design of Justin and Arons that employs
> the H bridge with the P460s. I usually get parts from a local supply house,
> but lately they have made me wait months for parts that they don't have on
> hand. I have been waiting since January for a soldering iron tip, and in
> another instance they came up with a part that I put on order last year, and
> I refused to buy it because I forgot what I wanted it for! Are there any
> suppliers on the net that I can order the ICs from without having to contend
> with bulk, and rediculous minimum orders?
Register, use "Find" part, see list of suppliers. Or just do "Research"
and find manufacturers.
Most like Newark and Avnet-Marshal and Future Electronics etc still have a
minimum of 100pcs order, though... :( But you may find other suppliers
If all fails, www.farnell-dot-com or www.rs-components-dot-com
(t.ex. farnell seems to have 1-9 TC4429 for 4.30eur per part,
which is expensive, and you have to order via your workplace, but still
it might be better than ordering 50. And they should deliver in 2-5 days)
> I need the MAX913, HC74LS14, and the MAX4420 for the driver. I would like to
> get maybe 10 of each component. I tried Digi Key, and they require an order
> of 50 of each device, Mouser doesn't have 'em.
Alternatively you could just collect them from different semiconductor
manufacturers! The majority have a sample order service. That service
isn't available for nothing, is it? ;o) You'll get parts in 3..5 days.
www.maxim-ic-dot-com (MAX442x series)
www.onsemi-dot-com (MC1335?..sumthin driver chips)
www.microchip-dot-com (TC442x series)
www.ti-dot-com (older UC3710, newer UC27321/22, UC37321/22 very good drivers
9A and TC442x series equivalents)
www.ixys-dot-com (t.ex. request "prototyping samples")
those are the ones I remember right now, but there are of course some more
If you need more parts, you can send new sample requests after a week or
so. Limits do vary - t.ex. max 8 parts per request, max 8 parts per week,
max 10 parts per month. But you should be able to collect most parts.
high voltage at http://www.hut.fi/~jwagner/tesla