The Budgie was not a good match for the Dynavector. You don’t need a MC preamp for a high output MC cartridge. The 10x5 has an output of 2.5 mv. This Croft has an input sensitivity of 2 mv and will match the 10x5 with no problem. The Budgie has a high input sensitivity of 5 mv. Take a look at the Croft!
https://www.needledoctor.com/Croft-RIAA-Phono-Preamp
Here is a used one for sale at half the price!
http://www.audioasylumtrader.com/ca/listing/Amplifier-SS/Croft-Tube/RIAA-Phono-Stage/Like-New/136432
https://www.needledoctor.com/Croft-RIAA-Phono-Preamp
Here is a used one for sale at half the price!
http://www.audioasylumtrader.com/ca/listing/Amplifier-SS/Croft-Tube/RIAA-Phono-Stage/Like-New/136432