In the process of ordering the parts for the reamplification
box project as per the article by Scott Dorsey in the April 2006
Recording magazine, I discovered the 0.1 H inductor (Digi-Key
part number M7104-ND) is not normally stocked and requires
a minimum order of 100 to order.

Perhaps I located the wrong part on the Digi-Key website
because I think there is a slight typo in the magazine article
which lists the part as M-7104-ND rather than M7104-ND. I
also think the part number for the Female panel XLR is
incorrectly listed and should be SC1009-ND.

I wonder if there is a substitute inductor at Digi-Key I could
order. So far I have found they carry all the other parts
as Scott mentioned in his article.

Thanks,
Gary V

"Gary V" wrote ...

In the process of ordering the parts for the reamplification
box project as per the article by Scott Dorsey in the April 2006
Recording magazine, I discovered the 0.1 H inductor (Digi-Key
part number M7104-ND) is not normally stocked and requires
a minimum order of 100 to order.

Perhaps I located the wrong part on the Digi-Key website
because I think there is a slight typo in the magazine article
which lists the part as M-7104-ND rather than M7104-ND. I
also think the part number for the Female panel XLR is
incorrectly listed and should be SC1009-ND.

DigiKey is the last place to buy XLR connectors.
Highest prices I've ever seen. Dunno what they're
thinkin'?

I wonder if there is a substitute inductor at Digi-Key I could
order. So far I have found they carry all the other parts
as Scott mentioned in his article.

Using the DigiKey search box with: 100000 uH
reveals 13 products, 8 of which are in stock.

Gary V wrote:

In the process of ordering the parts for the reamplification
box project as per the article by Scott Dorsey in the April 2006
Recording magazine, I discovered the 0.1 H inductor (Digi-Key
part number M7104-ND) is not normally stocked and requires
a minimum order of 100 to order.

Yeesh. That was not the case when the article was published... it
was a standard stocked item, and it is in paper catalogue TD041.
Did they tell you this on the phone?

Perhaps I located the wrong part on the Digi-Key website
because I think there is a slight typo in the magazine article
which lists the part as M-7104-ND rather than M7104-ND. I
also think the part number for the Female panel XLR is
incorrectly listed and should be SC1009-ND.

These are more parts number changes that are the result of the RoHS
stuff. The new part numbers are lead-free and the old lead ones are
no long available. Which is irritating.

I wonder if there is a substitute inductor at Digi-Key I could
order. So far I have found they carry all the other parts
as Scott mentioned in his article.

You could use an M9275-ND, but it would cost eight bucks, which is a lot
more money. Or you could use two M7473-ND ones in series, which would come
to six bucks.
--scott


--
"C'est un Nagra. C'est suisse, et tres, tres precis."

Scott Dorsey wrote:
Gary V wrote:

In the process of ordering the parts for the reamplification
box project as per the article by Scott Dorsey in the April 2006
Recording magazine, I discovered the 0.1 H inductor (Digi-Key
part number M7104-ND) is not normally stocked and requires
a minimum order of 100 to order.


Yeesh. That was not the case when the article was published... it
was a standard stocked item, and it is in paper catalogue TD041.
Did they tell you this on the phone?

No, I learned this via their web ordering process. I saw the lead
warning in the technical document so I surmised it was not longer
generally available.



Perhaps I located the wrong part on the Digi-Key website
because I think there is a slight typo in the magazine article
which lists the part as M-7104-ND rather than M7104-ND. I
also think the part number for the Female panel XLR is
incorrectly listed and should be SC1009-ND.


These are more parts number changes that are the result of the RoHS
stuff. The new part numbers are lead-free and the old lead ones are
no long available. Which is irritating.


I wonder if there is a substitute inductor at Digi-Key I could
order. So far I have found they carry all the other parts
as Scott mentioned in his article.


You could use an M9275-ND, but it would cost eight bucks, which is a lot
more money. Or you could use two M7473-ND ones in series, which would come
to six bucks.
--scott


Thanks for the part recommendations. Also for anyone else interested
in this thread, I see there is a correction in the June 2006 Recording
issue stating: "the wiring diagram shows incorrect pin number placement
on the transformer: follow the pin numbers as shown on the actual part...".

Thanks again Scott. I am looking forward to building this
reamplification box.

Gary V