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Author Topic: 2m 1/4 watt 1% resistors in the UK?  (Read 12352 times)

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2m 1/4 watt 1% resistors in the UK?
« on: June 28, 2009, 11:56:19 PM »
Am i just being blind or is it very difficult if not impossible to buy 2M 1/4 watt 1% metal film resisitors in the UK. Loads of places do 2M2 ones but nowhere will sell me 2M ones apart from some place in Hong Kong.

Anyone got any ideas?
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Gordonjcp

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Re: 2m 1/4 watt 1% resistors in the UK?
« Reply #1 on: June 29, 2009, 12:32:30 AM »
2M2 should be close enough.  If you really *really* need 2M then use two 1M resistors in series.

Don't be too fussy about 1/4W, either.  If you can only find them in 1/8W that may well be perfectly adequate - to drop 1/4W across 2M you'd need to be dropping about 700V.
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Re: 2m 1/4 watt 1% resistors in the UK?
« Reply #2 on: June 29, 2009, 02:22:53 PM »
i was considering the two 1M method but this is actually for a proper PCB which needs about twenty 2M resistors so it's going to get a bit messy with 40 1M resistors poking up all over the place.

I can't find 1/8 watt or 1/2 watt 2M ones either.

I might have to go with 2.2M if i can't find 2M i guess but i'd prefer not to given the choice.

I could always just buy these http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260435344219 but it annoyings me having to wait ages to get somthing as simple as resisitors al the way from Hong Kong.
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noystoise

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Re: 2m 1/4 watt 1% resistors in the UK?
« Reply #3 on: June 29, 2009, 09:00:28 PM »
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Gordonjcp

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Re: 2m 1/4 watt 1% resistors in the UK?
« Reply #4 on: June 29, 2009, 09:29:32 PM »
What exactly is the circuit?  Is 2M 1% a hard requirement, or can you play with it a bit?
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Re: 2m 1/4 watt 1% resistors in the UK?
« Reply #5 on: June 29, 2009, 09:56:35 PM »
Its the analogue board from the MFOS 16 step analogue sequencer. The sixteen 2M resistors go out to the tuning pots on the front panel so i'd imagine i could use 2.2M one if i just tuned everything slightly off but its not the best solution, although i'm not entirely sure how the tuning knobs position relates to real life anyway.

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Gordonjcp

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Re: 2m 1/4 watt 1% resistors in the UK?
« Reply #6 on: June 29, 2009, 11:38:57 PM »
All that'll happen is that you'll have a tiny bit less swing on your fine-tune pots.  Don't sweat it.
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Re: 2m 1/4 watt 1% resistors in the UK?
« Reply #7 on: June 30, 2009, 03:05:14 AM »
for some reason i was reading it as being for the coarse tuning pots but looking at the component layout it does seem to be for the fine tuning ones which i guess isn't as much of an issue.  ;)
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Gordonjcp

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Re: 2m 1/4 watt 1% resistors in the UK?
« Reply #8 on: June 30, 2009, 02:00:06 AM »
Y'know you could stack several of the gate boards and have slide and accent outputs as well.  Have a look at the 303 circuit diagram to see how the slide part might work.
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