If you own a Drake SPR-4 receiver, you know that it is a great classic receiver dating from 1968 to 1979 and was Drake's first fully solid state general coverage receiver.  Its capabilities are legendary and collectors of vintage equipment relish the SPR-4 as a very sensitive receiver.  The RL Drake Company did not offer a lot of accessories with the SPR-4, but did make calibrator and noise blanker modules available to enhance listening.  In addition, they sold extra crystals to expand the bands available for the user to tune into more frequencies than the factory supplied crystals.

Please note that these crystals will NOT work in other RL Drake receivers....only the SPR-4.  Please refrain from inquiring as these crystals cannot be utilized on other receivers such as the R4 series and we do not have such crystals to offer for sale.  If you do not see a crystal frequency available in the list below, we do not have it to offer for sale.

This sale is for ONE crystal from the following list.  You select which crystal you would like and we will send it to you via first class mail.  Upon purchase, please communicate your crystal selection(s) from the list of available crystals below so that your crystal(s) may be shipped without delay.  Thank you!  

2.0 MHz
2.5 MHz
3.0 MHz
4.0 MHz
4.5 MHz
5.0 MHz
6.0 MHz
6.5 MHz
7.0 MHz
7.5 MHz
8.0 MHz
8.5 MHz
9.0 MHz
9.5 MHz
10.0 MHz
10.5 MHz
11.0 MHz
11.5 MHz
12.0 MHz
12.5 MHz
13.0 MHz
15.0 MHz
16.0 MHz
16.5 MHz
17.0 MHz
17.5 MHz
19.0 MHz
19.5 MHz
20.0 MHz
21.5 MHz
22.0 MHz
22.5 MHz
23.0 MHz
24.0 MHz
25.5 MHz
26.0 MHz
26.5 MHz
27.5 MHz

The crystals are easy to install in the crystal board of the SPR-4.  Basically you remove 6 screws holding the top cover in place and then determine which place on the crystal board you want to place the crystal (there are 23 possible positions).  After plugging it into your desired socket position, you replace the top cover and....voila.

The picture of the crystal shown for this listing is representative picture of the crystals that we are offering for sale and so the actual crystal that you receive will differ slightly in appearance.  

Shipping cost will be priced based on your location and prevailing USPS rates and we ask that you use the Ebay shipping calculator.  We have shipped to 111 countries, 50 US states, and 9 Canadian provinces during the past 24 years on Ebay and are able to ship to you wherever you may live.

Thank you for taking the time out of your busy day to look at our Ebay items!