I'm reluctant to make these filters available as a kit, as
they require the four toroid inductors to be wound and adjusted to the target
inductance within ±2%. Even with the inductors within this tolerance, final
adjustment requires adjusting four trimmer capacitors to provide the desired
center frequency and passband shape. I use an HP4342A Q-meter to adjust the
inductors and verify their Q as meeting minimum standards, and an HP8752B vector
network analyzer to tune the filter.
These filter will be supplied as an assembled,
tuned and tested assembly, with a tamper seal on the enclosure. Building and
aligning a filter is a reasonably laborious process, requiring me to wind the inductors,
adjust them to target values, coat them with Q-dope, assemble the PCB, drill the
enclosure, tune the filter in a special enclosure and then move the tuned filter
assembly to the normal enclosure, re-measuring to verify the performance has not
changed.
A copy of the Z10010 Instruction Manual is available by clicking
here or via my
Documents page. The manual only covers the K2
version filter at the moment. Additional information can be found on the
K2 Filter page and on the
K3 IF Bandpass filter page.
Ordering and Pricing:
Z10010-K2 or Z10010-K3 filter, assembled, aligned with a copy of the bandpass
sweep data is $44.95, including postage to domestic US locations. Custom
frequencies are quoted individually.
Virginia Sales Tax—If your Z10010 is to be delivered within the
Commonwealth of Virginia, don't forget to include 5% sales tax.
To order by PayPal, send the correct funds to
orders@cliftonlaboratories.com.
Checks should be payable to Clifton Laboratories and sent to the address at the
top of this page. Please contact me to obtain a quotation on international
shipping if you are outside the USA.
